We wanted to get rid of a lot of stuff quickly. We do the curbside thing, too. We also take books and media to Half Price Books and sell them back. We make regular runs to our town's recycling station, especially for electronics.
Since we run about a 70-90 hour workweek during the school year, we just don't have a lot of time to sell things. In the summer, we have other things that we need to do to get ready for the next school year. Oh, the life of a teacher! Public perception-8-3 five days a week and 3 months off in the summer. NOT!