As the title really - what do people do?
I'm well aware that inkjet cartridges can be traded in for cash fairly easily, or clubcard points and so on, but these days people seem less interested in toner cartridges. Do you just dump them in the bin, donate them to charity or have you found a company that will pay you for them?
I would put a poll in, but I don't think there are enough people with laser printers to warrant it.