yep, lanyards are a lifesaver
I had bought a nice case for my phone. It's black. But I kept losing my phone, so I bought an obnoxious yellow case that's not as nice. It's stupid looking because it looks like a banana... but I guess I can always find my banana phone.
Anything and everything that can be lost now has something neon on it.

I bought those stupid neon price stickers (you know, those circle ones) and stick them on anything important... except for my backpack, but it has some bright pink on it anyways. Wallet is bright colored too.
Edit: at this rate everything will be neon and I'll probably start losing things again. But right now I have like 7 things with neon on them. Not too bad