How do you use a microwave oven?

A number of non-profit organizations will accept a microwave oven as a donation. Additionally, some repair shops will accept, but that isn't usual. Metal recyclers will accept them in some locations, and there are city, county and state organizations that can assist a citizen with a small appliance disposal issue. (The crew that issues a bill for refuse collection is supposed to know this stuff.) A bit of a web search is in order, but call a local charitable group first. They are probably the best bet, though by no means are they the only one. Be smart about this one. Don't our landfills have enough stuff in them? Good luck.