Scotchguard spray it. (Well, test a small hidden section first to see if it takes). Cuz once it's sprayed and gets stained, you can wipe it clean fairly easy. Beautiful bag btw.
hmmm- did you wash the jeans prior to wearing them? I've heard of color tranfer from denim happening but never to me. Personally I like the first one you bought, but I LOVE the black nylon tote- it looks durable and very sophistocated.