From my backpacking, camping and canoe camping days......

Hammocks are great when it is warm/hot. If it gets cool/cold you will FREEZE you * off. Most people don't think f the ground as an insulator, but it is. Once you are laying on it for a while it will get closer to your temp. With air moving under you, if it is cooler than you, it will suck the heat right out of you. (This is what you want on a hot day.)

Try out your diet and cooking before heading off on a trip. This should avoid the runs or constipation, but also make sure you can cook what you bring with what you bring.

I can fix most things with a Gerber tool and a Swiss army knife. I will add my Park tool since it is bicycle specific. Between the three items there is very little that can't be fixed. Things like scissors, knife, magnifying glass....

Always carry 1/3 more water than you expect to need. Nothing sucks more than going dry and not being able to fill up at the expected spot. The extra 1/3 will be able to carry you to the next watering hole.