^^ collecting tea, that's very interesting.
I collect shells, have them all clasified in separate boxes, I collect coins as well, and photographs of rocket launchings, people usually don't want them and give them to me.
I don't know if it's considered a collection but I've been keeping all the tickets from things I buy since a couple of years ago

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I also have a nice growing collection of superman comics. And finally I used to collect star wars figurines

, it may not look like it, but it's quite an expensive addiction, thank god I don't do it anymore.