I use Ortleibs, if it's not raining i can leave them open and pack even more in. I can get everything I need in those, plus flowers. It wouldn't work for packs of soda or juice but I just stopped buying those.

That's a nice crate though, I've been thinking of something like that for one of our 3 speeds just to have something nice and easy I can run quick errands on and put stuff in without a big hassle. Actually I was wondering if anyone made a suspension mounted crate or flat surface, like the same thing but with a few stiff springs underneath.I thought of that once when I wanted to get a pie home from a farmer's market and wasn't sure how. Or is that just crazy?