I'm starting a foundation degree next month and with the assistance of a handy reading list have been trying to source second hand books to keep my costs down.
I had a search on fb marketplace and found an ad listing 3 of the books I am looking for and it's not too far from where I live. I've messaged a few sellers who quite frankly are looking to make money on these books, claiming their pencilled in notes would be invaluable 
so I'm chatting to this lovely lady and she offered to send me the books and even take care of the postage. Just because she was having a good day. I thought that was really lovely :)