Crayola Ultra Clean markers (fine tip) or Ultra Clean crayons (fat tip). They come out easier than the plain Washable ones. Just soak with water and a teeny bit of laundry soap & they come right out of most fabrics (a few people have posted here that some colors of the markers don't come out of some fabrics, so do a quick test EVERY time). Also, even though I'm like half-blind with seeing drawn marks, I have no problem working with the same color Ultra Clean as the fabric (for pink fabrics, I use the pink marker; for green fabrics, the green one, etc)