I was moving last week, with the help of family and friends - using their cars to transport everything, and had been thinking to myself how I could have done the whole thing (with the possible exception being my queen-sized bed) with a large trailer behind behind my bike, much like you did. Maybe I can buy/build one before the next time I move (hopefully no time soon...) and actually do it. Thanks for the inspiration!
I'll also have to pass this along to my mom who was incredulous but intrigued by the idea when I was musing about it aloud.