I recently bought a suitcase trailer similar to the Bike Friday one, but less costly. However I will need some adapters, as my bike suitcase is a tad too wide, but slightly wedge shaped, so it will fit if I raise it on 1" rubber spacers. Since it arrived in November as the weather was turning, I lost interest - I will finish it up in the spring and start a new thread then. My plan is to mount a laundry basket or something similar on it, when I am not using it with the suitcase, to ferry my dog to parks and such. I could use her enclosed crate, but she might like more of a view.

Meanwhile I hope to hear more about people's experience with trailers.