The last time you bought a mattress, the store probably offered to take your old one away for free. Trouble is, mattresses are hard to dispose of and expensive to recycle. They can’t be compressed easily in landfills, and have to be manually torn apart or put in expensive machines to even partly recycle them. They suggest you look for “green” mattresses online, and take good care of your current one so it will last as long as possible. [Seattle Times]