Here are some useful hotlinks for things discussed on the September 21, 2016 WebTogether Consumer Broadcast. For details on upcoming broadcasts click here.
Taping Drywall Joints -- Lights, Shadows and Paint :
Is your oil tank safe:
Building wheelchair ramps:
Tile step profiles:
and for the chat question about using an old aluminum circuit pannel with new copper wiring, I had speculated that it should work -- but when I talked to my electrical expert he said that anything that old should be replaced: see the bottom of this article for his full and wise comments:
Fresh air in a closed bedroom: