Hourly work in the boatyard doing the jobs no one else wants to do. Bottom scraping/sanding/painting, pulling wires through customers boats, and the odd electronic casualty that stumps the vendors - but I can fix with a multi-meter or amp-clamp. Amazing how many electrical problems are caused by bad connections (corroded, loose, or burnt).
I have discovered it is worth it to pull a new 50' wire or cable than have one splice or connection in it. I try to use terminals that are heat shrinkable and filled with adhesive. They cost more, but last almost forever. I recently crawled into a space the size of a ice chest and terminated a cable to a radar scanner. Lots of necessary connections when the mast has to come down.