If you can't get under an Explorer to get to the oil pan, you're a fat bastard whose carbon footprint needs to be removed as soon as possible to prevent contamination of the gene pool. I can get under my Jeep Liberty just fine, and I'm by no means thin.
FWIW, when I change my oil, I have a catch pan with a spout so that when I've drained the oil and changed the filter and the new oil put in the car, the now-empty "new" oil jug acts as a receptacle which can be filled with the "old" oil from the pan. Said jug can then be taken to Wally World where it is recycled, free of charge. The drained filter goes in the garbage.
How simple, yes?