Photography

Oldish used point-and-shoot cameras are very cheap on eBay and similar, and fill a niche that basically no longer exists in the new market because the current point-and-shoots are pretty much all prosumer grade models now that everyone else and their dog uses their phone as a camera instead.

So I'll recommend a used example of whatever the newest Canon PowerShot SX1xx line you can get your hands on. I have my old SX130 IS but the 150 and the 160 are also excellent choices. SX160s are selling for about $120 USD on eBay right now.

These have optical image stabilization, a much larger sensor and thus better low light performance than any cell phone camera, very decent optics for a compact point-and-shoot, and here's a very important factor: Everything in this series runs off of regular AA batteries. That means no scrounging around for proprietary lithium packs, nor hoping new-old-stock you find on eBay actually works, nor the myriad of charging and connectivity issues you'll experience using knockoff battery packs. Provided you manage not to break the thing, you should be able to keep any PowerShot SX working for the rest of eternity, one way or the other.

These also have very long zoom ranges. The SX160IS is a 28mm to 448mm equivalent, or "16x" zoom in consumer parlance. Thus it can go from reasonably wide angle to very telephoto, all in one go.

There are a lot of even smaller models you can find like the Canon Digital Elph series, Panasonic Lumix, Nikon Coolpix S series, etc. but all of these without exception take titchy little proprietary lithium battery packs that are going to be a crapshoot. Fun to play with as a curio and very slick, but I would not be in a hurry to make any of those my primary camera these days.

I wear highly unfashionable hiking pants 365 days out of the year and I can fit my SX130 IS into any of my pockets comfortably. It's got a smaller footprint than a modern smartphone, but is about four times the thickness.