Building a flat file storage cabinet yourself and wondering how to finish off plywood and pine to protect it from the elements (and the stray water from a drying painting)? A good way might be to alternately sand and coat with an oil-based varnish. Last post I told you about the new flat file paper storage cabinet I've been building in order to store all my large pastel papers and paintings (with the help of my partner Pete the carpenter - Fix-it Pete!). You can view the prev