Hitting a brick wall

What do you do when you hit a brick wall? Say, "Ouch!" Turn around and walk the other way. Clean out your purse, portfolios, sharpen pencils, plan new play dates, hire a new babysitter, edit, cut anything out of the schedule that isn't absolutely necessary. Continue drawing and maybe bake a cake.

It's crowded here at Jefferson Library. But I spot a pencil sharper and there's no more brick walls in sight.