I also ran the entire length of the road to see if there was any trace of the cart or chests on it, or a duplicate of them (before I realized they might be back at my place).
This is what I lost (I had said the number of seeds I was bringing on IRC, and had logs - the rest I remembered):
- 32 carrots (I have 4 carrots left - not plants, already pulled up carrots. It's enough to start a new crop, though)
- 18 tea seeds (but I have tea plants left that I can pull up, although I have no chests to put them in)
- 18 wheat seeds (but I have wheat plants left that I can pull up, although I have no chests to put them in)
- Four buckets, two filled with milk, one with a liter or so of honey in it
- four plant fiber
- four bones
- 2 boar helmets
- 5 leather armor
- 5 leather legs
- 1 leather coat
- A boar tusk
- A pair of antlers
The leather armor I don't really care about - I had ridiculous quantities of leather and will likely have them again in the future. The real painful part is the loss of the three chests themselves - I can't easily replace those, and without them, I'll have to use straw baskets to bring seeds instead. Although, I guess they'll actually fit, since I won't have any buckets or leather stuff to bring along...