Some honing oil for you two sided stone (to float steel away from the stone so it will cut faster), some windex to remove the oil, and a sharpie-style marker so you'll know when you're hitting the edge. Oh, and a rust-eraser for easily cleaning of your Sharpmaker hones. That's all you need for spooky sharp edges with most steels - though the other unmentioned stuff can be fun, too.