My husband's company (where I also worked for a few months) used to have a woman who was retired Army (quartermaster) in charge of supplies. She actually had little containers that would hold about 10 paper clips out on the supply shelves. If you took ANYTHING, you were expected to mark it on a sheet of paper. If the paper clips got down to about 2, she would refill the container up to 10 (if she was in a good mood that day).
I don't play those games. I had stuff at home (when you shop at Sam's Club, you ALWAYS have surplus), and I took in my own stuff. I do think a company should provide you with a working mouse without a fight. Is it just your department, or is the whole place? (I once had a boss who expected one of our engineers to provide her own calculator.)