Something I'm glad I did was make sure I had plenty of writing materials and hard copy books, as well as eBooks.
I have friends who rely on going to the library for hard copy books every week or two and they were caught very short. Some switched to eBooks from the library for the first time, others ordered used books online or started trading books with friends.
Added: I'm big on writing letters and notes. Have a stash of writing paper and note cards, so I've been sending out a couple of letters or cards a week. The recipients are primarily seniors, and they are glad to get them.