I really enjoyed this Houzz article about why it might be a good idea to ditch your fireplace. The idea, see, is that you might not need it due to inefficiency, local air quality restrictions, storage needs, or some other reason.
Remember the crusaders? Those guys who ran around making war as a way to spread Christianity? Perhaps they also invented the word 'oxymoron'. Anyway, I've been on a crusade, too. About a year ago I made a concerted effort to decrease the amount of plastic sitting in my garbage at the end of the month. It hasn't been a giggle-riot, let me tell you that. It's an all-out war. Against plastic.
Chances are you've bought something on ebay. Personally, I got addicted to ebay because of the Bakelite, hose nozzles, and vintage Skyy vodka ads. (You can buy different print versions from all over the world. A friend collects, which makes these awesome gifts.) But I had never tried selling anything and was eager to give it a whirl.