[cleis]

Or you could, you know, take keys... I fail to understand the distraction of having keys. It's not like I walk past every door I see and think 'man, must try and unlock that with my handy keys'. I suppose they do jangle. Bloody jangling keys.

[archangel_one]

I do think it'd be quite useful to have them, despite the jangling, in order to let myself back into my flat once I got back from my walk.

[koide]

You could take only the one or two keys needed to get in, tied up with a tiny bit of wire. Leave the keychain and rest of junk keys you might have.

[whichdan]

What I do is keep my keys on ~3 different keyrings based on what they're for, and a snap hook to keep them all together. Makes it easy to mix-and-match, and you don't have to fumble with a wire.