Timex Vibration Digital Watch: I have time blindness, so having a thing on my wrist that beeps every hour is really useful. Vibrating alarm means that I know when a timer goes off even if I have headphones on or am sleeping. And there's something to be said for the simplicity of digital watch interfaces. I don't have to worry about charging it, the UX is easy to understand. It helps with my time blindness, and that's it -- it doesn't check my blood pressure or tell me when I get a text message. It does one thing well.
VivoBarefoot Primus Lite (II): barefoot/low-support shoes are not for everyone, but they made a drastic difference for me in reducing foot pain. I like VivoBarefoot's return policy, and their shoes have held up pretty well for me so far.
Tofu Press: If you're using paper towels and plates to press your tofu, you might not realize that tofu presses exist or that they're actually an improvement and not just a gimmicky accessory. They're not a gimmick, they make the prep process a lot easier and a lot less messy. You don't need a complicated press, mine is 2 plastic boards with 2 screws holding them together. I just slip the entire block between them, tighten the screws and then leave the whole thing sitting over a bowl. Way less work than soaking paper towels.
Domestic rats: I think domestic rats are basically the perfect apartment pet. If you want a pet but feel intimidated by a cat or dog or don't have the space to take care of them, you should look into rats. They're lower maintenance than a cat, but very intelligent and affectionate. They love to explore and can be taught tricks, they're litterbox trainable, they're extremely gentle if you get them from a proper breeder. They're pretty messy, but not terrible, and most of their mess gets consolidated to the areas where you let them play. They've done wonders for my mental health during the pandemic; they're just fascinating, amazing animals.
Always buy at least 2, never buy them from a pet store, and keep in mind that because they're so intelligent they do need more interaction, more space, and a lot more mental stimulation than other rodents/pocket-pets. Do research first. Also keep in mind that they'll only live 3-4 years (much less if you get them from a pet store or breeder that does inbreeding), which can be both a positive and a negative.