Carts for hauling your stuff around at a workshop
Dulcimer Resources:TABS/Books/websites/DVDs
Jan, I can see why the upright cart might take up less floor space, but it also limits the kind of items you can carry. Smaller items in the bottom would be a hassle to grab, I would think. My cart becomes a kind of catch-all, where I can toss a bottle of water, my keys, someone's business card, a string winder, a jacket or hat or whatever. The festivals I've attended apparently don't have the same space issues yous peak of. But I tend to find a little spot to make my own where I park my cart and then take whatever instrument and other supplies I need to any given workshop. At the Berkeley Dulcimer Gathering about a week ago, we emptied out a couple of classrooms to gather the chairs and music stands for larger groups. I just put my cart in one of the empty classrooms, and that became my little spot, not only to store my stuff but to get away for a quiet moment here and there. It was right next to the room I used for the workshop I taught so it was really convenient. But you are right; if I had to take the cart with me everywhere I went, it would be a hassle.
When I played at a small arts fair with a few other folks some time ago I had to bring two dulcimers and a guitar as well as some mics and cords and other stuff. When I arrived I heard the other musicians wondering if I needed help carrying all my stuff and wondering if they should try to call me to find out where I was. They got a kick out of my cart of instruments when they saw me. And I've also used it to play for my daughter's class in school, when I cart in a whole bunch of instruments: a ukulele, a mandolin, an autoharp, a six- and twelve-string guitar, a couple of limberjacks, and, of course, a dulcimer. I have to admit I get a kick out of walking around the school with my cart of instruments like a modern troubadour.

I also just checked some of the consumer reviews. Lots of complaints about the smell. I don't remember it being that bad, but we keep ours in the garage, so it probably aired out before we ever had to use it.
Peter mentioned Down by the Sally Gardens as well, so I'll be learning that one and adding it for sure. Thanks!