aside from the usual anime, manga, magazines etc, I used to have pokemon/magic cards still have some yugioh shit left, I've almost completely transitioned into Lycee (if u feel like necro bumping go ahead and try here)
When I was a little kid, I used to collect glass bottles (I really don't know how, I just somehow saw something interesting in them), so I took off the etiquette and put it into the cupboard. Additionally, I strangely enough found backpacks interesting for some odd reason, as well. Anyway, later on I started to collect Pokémon and Yu-Gi-Oh! cards, because I guess it's pretty typical for boys nowadays to play at least one TGC while still being young enough not to be ashamed of it. I grew tired of those as well after three to four years (I guess?), and then stopped collecting things for quite a long timespan until I just recently (two to three years ago) bumped into anime. Of course I've seen anime on tv before, but two or three years ago I really got into it and currently I'm collecting anime episodes and manga (which naturally comes with anime, I guess).