Hi - I thought I might try the crafty people here to help me. I have a pillowcase for my kids that the characters signed while on the cruise. It was signed with Sharpies. I thought that I had read somewhere that you should soak/wash them in __________ to help set the colors before using/multiple washes. Has anyone ever heard of anything along these lines or is this some weird thing I dreamed all those crazy nights before our trip ? Thanks!