Currently fitting a diagonal into the left wing of our main gate. Quite a faff, holding a 2-metre oak board diagonally against the frame to mark it - took about an hour of slippy-slidey with MrsT bravely supporting one end of the board and ignoring the swears. Then had to persuade my 25-year-old mitre saw to swing to the correct angle and stay there. Eventually got it cut and did a dry run at fitting it into the frame. It's OK but it's a bit thick so it's sitting 5 mm proud. No problem, just have to chamfer it down; so back to the workshop, get my Stanley n°6 going, and half an hour's planing does it. I love planing and get into a sort-of trance, a bit like doing a long climb.
All done, shavings into the box under the bench, admire the result and realize: I've chamfered the wrong bloody edge.