All of my used oil goes into a 5 gallon heavy plastic container that use to contain Simple Green. I can get the oil from all 3 vehicles into it. A total of 18 quarts, (4-1/2 gallons). Autozone here in town take it.
Of course Silicon Valley big on recycling; all the garbage companies offer this service. They give you thick plastic bags for oil filters. I am the only one on my block to do oil changes. I love my neighbors but they are a bunch of whossies. But guess who they come to when their car won't start, has a flat, etc? Or they need to borrow our trusty Tundra? FYI, that's a good thing because it comes home gassed up!