They say if you can't be a great example, you will have to serve as a horrible warning. So, in the interest of public service, my new slops:
As to that horrible warning...
THINGS I HAVE LEARNED ABOUT CANVAS:
1) Canvas shrinks, when washed, (roughly on par with Levi's 501 denim, 1 inch in the waist, 2 inches in the inseam.) I made these straight off the bolt,. After washing, they are shorter and narrower in the leg than I would like. Bottom line: Wash (i.e., preshrink) your fabric before starting.
2) Canvas ravels like crazy when washed. I almost lost the seams. Had to put in secondary seams (which shrunk the overall size even more) plus zigzag to keep the cloth from eroding further. Bottom line: finish all raw (cut) edges.
Signed, Master of the Blindingly Obvious.