My wife and I have been reorganizing our game room. We've purchased new shelves, and I'm now putting my stuff in some semblance of order (which is a task, because I'm a librarian by trade). The problem is, I have a lot of stuff that is now very prominent that I don't expect I'll be using at any point in the near future (or possibly, ever).
I have large boxed sets of Kickstarter "All-In Pledges" for game systems that didn't connect with my group. I have multiple copies of core books that I bought so my players wouldn't need to - and we don't even play that system anymore. I have books that I've had for decades from old systems that I haven't used but have a nice historic pedigree (like a complete, never used boxed set of The Night Below). For most of the newer stuff, I also got PDFs with the book purchases - so I can still access the content in many cases.
What do I get rid of? How do I do it? I don't really have a gaming store or used books place in my area. (Well, I do have a local game store that takes trades, but I've already got hundreds in store credit there and don't want to buy anything they've got anyway.)
Re: Donating to libraries. As I mentioned, I'm a librarian by trade. Our local library could possibly use some of the newest D&D/PF books, but they're not going to want the boxed sets that have fiddly bits or obscure RPG titles.
P.S. I'm not getting out of the hobby. Just downsizing. I've bought so much due to FOMO, especially during the pandemic and because of Kickstarters. My gaming tastes have also changed (after realizing how unhappy I was with certain systems.)