Only Amazon Prime members can score these 7 secret deals, starting at just $9

Amazon's No. 1 bestselling wallet? Only $9 for Prime members. It's an RFID-blocking dynamo with space for cash and cards aplenty. Choose from 30+ colors.

"We just spent three weeks backpacking through Europe, and this was very useful," one of 40,000 fave-star reviewers wrote. "I needed a small, thin wallet to hold my bills and main cards in the money belt. ... This minimalist wallet did the job."

Need a simple bedside alarm clock that's easy to read, both up close and from afar? This one will only run you $12 if you're a Prime member. It has six dimming settings, five alarm volumes and a battery backup, just in case.

"This is a great bedside clock," one five-star reviewer wrote. "It's small, easy to read and not blinding. Keeps perfect time."

Not a fan of flossing? This top-rated water pick offers a gentler alternative. It helps to promote blood circulation and massage the gums, and it'll leave you feeling fresh as a daisy.

One reviewer shared: "My teeth feel so clean after use, like I have just come from the dentist."

Sleeping on an airplane, especially during the daytime, isn't easy. If you need complete darkness to catch some zzzs, this top-selling light-blocking eye mask is your ticket to snoozing while you fly.

"What a difference it made!" one of over 70,000 five-star reviewers wrote. "[I] was able to sleep on the plane and have no disruptions from light."

With fall just around the corner and holiday celebrations on the horizon, you may be thinking about entertaining. Something great to have on hand to make hosting easier? These ramekins. They're excellent for mini desserts and soufflés. And they're just right for nibbles.

"Perfect size to use on your charcuterie board for olives, pickles, nuts, etc.," one five-star reviewer wrote. "Arrived well-packaged and without any problems."

This new portable Bluetooth speaker already has over 2,000 five-star fans. It's cute and compact, but packs a serious punch and will get the party started at that backyard barbecue or beach bash. It's waterproof too.

"It's light, it's portable and it's loud!" one impressed shopper wrote. "The bass on this thing is sinister, just the way I like it."

This carry-on suitcase is a tried-and-true favorite for many travelers — just ask the more than 16,000 five-star reviewers over at Amazon. The hardside spinner is made to withstand the rigors of air travel and comes with a 10-year warranty.

One shopper who's used it for seven years said it's "held up well for the long term."