Here's a photo of the traveling version of the sharpening wheel. It is by far the fastest way to a really sharp plane blade. Frankly, I don't understand why everyone doesn't do it this way. The diamond paste is necessary for carbide tipped blades, but the honing compound from Woodcraft or Lee Valley is fine for steel blades and cheap. A lump of the compound is in the photo. You can sharpen a steel blade in 30 seconds with this method. Carbide takes a bit longer.  If you are only using one type of blade, the tool holder is not necessary, Just clamp a block to the workbench so that the blade leans into the wheel at the right angle. Harry Boyd has a photo at his web site of this setup.