Topics: Repairing gaps and overflows in a slate-tile floor / Making "bubbling up" carpet lie flat again / Installing a Pergo floor / Stripping tarpaper from subfloor / Repairing "soft spots" in laminate flooring / Adding tracks to the bottom of sliding closet doors / Expanding a doorway in a supporting wall / Framing for a screen door / Doorknob is too close to door frame, but can't be moved / Replacing rubber strip at the base of a shower door / Anchoring an antique doorknob in a wall, so that a mirror can hang from it / The best way to cut Plexiglas.