One of the smartest ideas I've ever come up with is the concept of the Back Scratch Grid (TM pending).
After years of asking someone to scratch my back, then suffering through the inevitable "higher . . .lower . . . to the left, no the left . . " I hit upon a brainstorm: Sixteen different grid areas, easily identified by co-ordinates. A (below the shoulder) to D (lower back), 1 (left) to 4 (right).
Have an itch midway up your back on the right side? Ask for assistance at location C-4. Easy-peezy. It's bloody genius, and yet for years Lisa's called me insane whenever I implement it. I guess those without the gift are prone to mocking it. Sad really.
Last night I called for help in D-3 and D-4, and met with half-haphazard results.
"What the hell?" I said. "How easy can this be? They're co-ordinates and you still managed to miss it completely. C'mon!"
She nodded agreement. "Well to be fair Dan, maybe you should divide up the grid more" she said, "since it's grown quite a bit wider since you invented it."