Applying a clear finish to bare wood is a hit-or-miss undertaking. When the finish enhances the grain, the finish might be too light, but adding a stain to darken it isn't possible after the fact. Wish there was some way to know before you paint? Well, there is! If you want to see what a clear finish on bare wood will look like, moisten a cloth with paint thinner and wipe it on the wood. The wet surface will bring out the grain just like a clear coat of varnish, shellac or polyurethane would. This will indicate whether or not you need a stain. The paint thinner will quickly evaporate leaving you with the answer of what to do about a finish. And that's the On The House tip for today.