Today's best sales: 20% off Lego's Harry Potter advent calendar, 40% off Fitbit

We solemnly swear every Harry Potter fan needs this 24-day countdown, especially while it's marked down at Amazon! Bring some Christmas magic to the halls of Hogwarts with festive decorations, collectible portraits and eight pint-sized characters.

"We purchase these each year and love them. It's a fun little thing to look forward to each morning leading up to Christmas," said one shopper. 

"This is a fun advent calendar for Harry Potter fans of all ages," said another. "I'm debating buying a second set for myself because the one I bought was for a grown son. Such detail. Love the figurines."

If you have some holiday travel coming up, make your suitcase more organized with the help of some packing cubes. These bags can help you keep track of all your outfits and accessories, and make unpacking a little bit easier (since everything will be nicely folded up). Score them on sale today — they're an Amazon Lightning Deal, and have an extra 10% off with the on-page coupon.

"They make packing so much more efficient, and it’s easy to keep things organized in my suitcase," said one shopper. "The cubes are lightweight but durable, with sturdy zippers that hold up well during travel. I also love how they help maximize space and keep everything wrinkle-free. Unpacking at my destination is a breeze because I can easily see what’s in each cube."

While Beats do go on sale from time to time, this is a great price. Here are the highlights: They're wireless, foldable and durable, and offer up to 40 hours of battery life. If you tend to forget to charge your things, you'll be happy to learn that five minutes of charging gives you hours of playback when the battery is low. 

"Awesome sound quality, the build is solid and the price is right," said one reviewer. "When connecting the headphones with your device, it's very quick and syncs easily. Battery life is really good."

Need a new set of kitchen knives? This Carote set includes an 8-inch chef knife, an 8-inch bread knife, a 7-inch santoku knife, a 5-inch utility knife, a 3.5-inch paring knife, six steak knives, a sharpening steel and household shears. Plus, it all comes in a stylish wooden block.

"This is a gorgeous set of knives and they are well crafted," said one shopper. "They are a little heavy compared to most, but well balanced. They are incredibly sharp and slicing anything is easy. The price was a real bonus. I always get compliments on this beautiful set."

Mix, serve and store dishes in these stainless steel mixing bowls. The set includes five bowls ranging in size from 0.7 quarts to 4.5 quarts, and all come with colorful lids. Other perks: You can nest them in your cabinets to save space, they're dishwasher-friendly and they're dent- and rust-resistant.

Pick up these Serta gel memory foam pillows while they're only $20 for two. They're cooling to help you avoid night sweats, and they're supportive. The memory foam will cradle your head and neck for a better night's sleep.

"This is truly the best cooling and most comfortable pillow I've used in decades. And I swore by my $75 bamboo foam pillows for years," said one shopper. "My neck pain disappeared in three nights! I am always cooled with no matted-down hair in the morning. I'd have gladly paid more for all this comfort! And I'm a bargain person. I'm glad I picked it up on a whim."

Going on a trip? Grab this three-piece luggage set while it's over half off! You'll get a carry-on and two different-sized checked bags, all with spinner wheels and built-in TSA-approved locks. They come in a range of colors, including plain black.

"I'm a senior and needed new lightweight luggage! [These are] so light and the wheels move so freely!" said one buyer. "I purchased the lavender color and you can spot it coming down the airport luggage shoot! Guess what? No marks on it!"

This classic crewneck sweatshirt is on sale for just $10 — yes, really. At that price, you may want to get more than one! It's made with a super soft, not-too-heavy French terry, and it has a flattering high-low hem. 

"I love these sweatshirts," said a shopper. "They are inexpensive and a fabric that I really find comfortable (French terry). I have them in about six different colors now. I like that I can find staple items like this for a reasonable price."

This is your chance to grab a Fitbit for less — a lot less! This is the lowest we've seen the FitBit Versa 4 go. (FYI, the fitness trackers didn't even go on sale during the last Prime Day.) Use it to track your heart rate, steps, quality of sleep, calories and more. And the battery lasts for six days or more.

"Use it constantly, worth every penny," said one user. "The charge lasts over a week and it gives a low battery warning at 35%, meaning it never dies unexpectedly in the middle of the day. It's definitely waterproof (wear it in the pool or shower all you want). Sometimes I have some trouble getting the GPS to work, but strangely only for biking. Loved it enough that I also bought my husband one and he uses it even more than I do."

Hate lugging a heavy vacuum up and down your stairs? You won't have to with this cordless vac — the sleek design is a major upgrade from bulky dirt-busters of yore. It transforms into a handheld for cleaning furniture and higher surfaces, and a filtration system traps allergens such as pet dander. Score this household helper for 30% off.

One pet owner and Dyson fan wrote in the reviews: "I have owned a Dyson since 2012 and I love it. It has stood the test of time and still does a great job. But with two long-haired cats, I needed a cordless vacuum that could reach more spaces and where I wasn't constantly plugging/unplugging. It is very lightweight and easy to operate. The canister is easy to dump too. ... Nice suction — picks up small debris and cat hair without fail!"

If you're looking to cut the (cable) cord, Amazon's original Fire TV Stick is the streaming sidekick you need. Enjoy content from all of your favorite services (like Hulu, Netflix and Amazon Prime) with just the touch of a button. And feel free to ask Alexa for movie and TV suggestions if you aren't quite sure what to watch — the smart assistant is built right into the remote! Plus, the stick plugs right into an HDMI port in the back of your TV, so it's nice and tidy.

"My parents were paying $140 per month for cable TV and internet, and they do not watch TV at all. They only occasionally use the TV to watch YouTube videos with their laptop connected to it. I am not tech savvy at all — but I decided to just purchase the Fire Stick to see if this would work better for them," explained one shopper. "I was able to set it up (so easy!) and my parents are so much happier! Now they have a remote to do everything they need. They've also cut their monthly TV/internet bill by over 60%."