You will usually find something on the return that you missed going out, which adds to the load. Carry a pair of pliers, and some sort of wire cutter. Some insulators are wired onto the poles, and unwinding a bunch of heavy gauge wire is hard on your hands. The wooden screw attachments also swell up when wet. If the insulator will not unscrew, you either have to remove the whole peg it is mounted on, or leave it.
Pliers really help.
Take insect repellent. I mentioned the mosquitoes, but when I got home, I found out that the ticks and chiggers were out, too. My legs still have occasional itches two weeks later. When a train is coming, the horn blowing will start when the engineer sees you, and will not stop until you wave at him and acknowledge that you know he is coming. Stop working on getting the latest insulator off the crossbar, and wave at him.