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Want more deals? Visit CNN Underscored’s?Guide to Prime Day?for wall-to-wall coverage of the best discounts to be found during Amazon’s massive sale.

We all know the feeling. You go to print something for the first time in months and somehow you’re out of ink, or you tune in for the big game and your TV remote dies at the worst time. I’ve been there. It stinks.

That’s why refills aren’t just for soda fountains. T they can keep our lives stress-free and help us get the most out of the products we already own. With thousands of Amazon Prime Day deals live through midnight, I sifted through the noise to pick out several refill deals worth stocking up on. Many of them are things that you’re bound to buy at some point anyway. Take a look for yourself, or pop over to Amazon to see which sales you’re jumping on before they’re gone.

Best Tested

Refilling our favorite razor for men hasn't been this affordable in more than year. If you're new to the SkinGuard, a starter pack is on sale too.

The best air purifier we tested, the Coway Airmega AP-1512HH, is on sale, so get ahead of replacement filter costs for cheap while you can.

Best Tested

Our favorite soda maker, the SodaStream Terra, won't fall flat when you stock up on this bundle of CO2 and three flavors: strawberry, mango and lime.

There's no use buying more foaming dispensers when you can easily refill them. This big Method container is an easy buy at just $5.

The fluffy scrubbers in your shower only last so long. Freshen up your stash with this quartet of loofahs that comes out to less than $2 each.

Robux are like gold to a lot of kids. The virtual currency of the massively popular Roblox game is 20% off for gift cards starting at $25.

I had been waiting for Prime Day to restock on filters for my Melitta pour-over brewer, which is $10 and brews a such clean cup. Make your coffee another way? Plenty of other coffee filters are on sale as well.

Reader Favorite

A deal on the absorbent Swedish Dishcloths couldn't have come at a better time. If you need to ditch some crusty old dish towels like I do, these are a worthwhile sustainable swap at 29% off.

I'm a Quip subscriber and really enjoy never having to think about buying toothbrushes. This deal on three-replacement heads is great to stash away for when you want to swap in a new head a little earlier than expected.

Blueland's sustainable lineup comprises everything you need to keep your home clean. Stock up on refills or get on board with one of their starter packs.

If you have a dog, you're going to need more of these eventually. These are a must-buy for me whenever they're on sale.

We love how Thermacell mosquito repellers actually keep bugs at bay. Save a few dollars on these accompanying fuel cartridges, which work with models such as the Patio Shield.

These makeup removing wipes are marked down just a bit lower than their usual price. Save up on some packs now before they cost a few more bucks next week.

The $10 markdown on these Brita water filters represents the best discount we've seen on them this year.

Don't let the next pen you reach for be a crusty old dud. This 12-pack of Sharpie 0.7-millimeter gel pens hasn't been priced this low since March.

Your charging cables will never become "empty," but they will break. Take the guesswork out of which one you'll need next by snagging this one with interchangeable Lighting, USB-C and Micro USB connectors.

Just a dollar above its lowest price ever, this six-pack of razor blade refills means smooth shaves for the rest of the year.

Rare Deal

An underwear-drawer refresh can change your entire outlook on life. This 12-pack available in sizes small through 3XL has fallen below $30 just once before.

Even in a world where more and more gadgets are rechargable, there will always be a need for batteries in your home. Restock with this 28-pack that's dropped to its new lowest price.

It's always more economic to refill your hand soap dispensers instead of buying new ones. It's even more so when the refill is 20% off.

Pickleballs lose their shape and bounce over time. Stay stocked with this bucket of 36 replacements, which is usually about $90 but has plummeted to an all-time low price.

This 18-ounce jug with a pump dispenser is perfect for refilling smaller travel-size containers or lathering up every day. It's 20% off for Prime Day, as are a bunch of other Supergoop sunscreens.

AirTags — which are down to their lowest price and are one of our favorite Apple deals this Prime Day — only last about a year until they need a new battery. This 10-pack makes swapping out the batteries in your entire fleet a breeze.

With black and color cartridges in this two-pack, owners of our favorite printer, the HP Envy Pro 6455, won't be stuck without ink the next time they go to print.