school notes -
Chuck 'em! I used to hang on to them, and still have occasional moments right before I put them in the recycling bin where I think, "Wait! You might need this someday!", but, you don't need them. If you're looking for info, all you're going to retain is that you think it's in this stack or that binder, and then you'll spend a good 30 minutes looking for what you want. Faster than that to pull a likely textbook and flip to the glossary or index, or to call a co-worker, or to use an article database on the internet. You are more likely to get your hands on current info this way too (well, using the last two methods), if you're in a field that changes. If you're a historian or something, well...
For real. Throw them out. Or use them in a bonfire, 'cause there's something cathartic about moving on to a new era and leaving the old behind in the fire.
I also love your bedding (and Ikea).