When I started working on bag designs last year, I thought about what makes a bag useful. One of my biggest pet peeves is a bag that simply doesn't stand up for itself! No wimpy bags for this chick! So, of course, that brings me to the topic of today's post which is buckram. "Buckram?", you say, "What on earth is that?" I have gotten that comment a LOT since I designed the Bridget Bag for last spring! To answer the question, buckram is a stiff but lightweight woven stabilizer that is made…