I don't have much experience with knits, which is what most of the baby clothes are made from. Should I stabilize them somehow? A water soluble stabilizer or starch? Then I was going to sew them onto a squares of muslin; I think that will help with stretching issues as well. I'm planning on using a regular all-purpose needle, since I'll be using both knits and wovens.
I'm not sure yet what I'll use as backing. I'm thinking about something soft like minkee. Would that be really hard to quilt with? Would flannel or a quilting cotton type be better?