I've been using the
Wike Heavy Duty Flatbed Trailer as my "car replacement" trailer for almost three years, and it's still going strong (I've used it in rain, snow, ice, etc.) I outfitted it with two storage totes and some bungee cords; for groceries etc. I put items in the totes, and for larger items I can just leave the totes at home. The trailer hitch is easy enough to install, but I purchased a second one so that I could have two bikes ready to roll with the trailer.
Only one tote on this trip, but here's a photo of the trailer in action (getting landscaping supplies):
