Ok, I read some, but not all, so sorry if I repeat any:
1. Make your leaders just short enough that, when the fly is on the hook keeper, the fly line-leader knot is just off the rod tip. So after walking, when you unhook the fly, you don't gotta work that knot through the tippy top. That's usually about the correct length anyway.
2. If you have to make the leader longer than #1, when you want to hook it up to the hook keeper, wrap it around the reel handle and then back up to the hook keeper. Lets you do #1 with a little longer leader.
3. When tying clinch knots, don't wrap the tag end around the line. Grab the line and tag end with one hand and twist the fly itself.
4. When tying any knots, if you have trouble seeing the line detail to "hit the right holes", hold the line against a light, solid background. At dusk, when this is most difficult, the sky is the lightest thing around.
5. It's much better to apply floatant BEFORE the fly gets wet!
6. To keep marital bliss, the most important thing is the boots. When dirty, put them in a plastic tub to keep the car clean. When you get home, if you leave everything else in the car for a bit, make sure those boots come out right away.
7. Standard rule of thumb. When getting ready to fish, the fly rod is the LAST thing you get out and set up. When returning to the car, it's the FIRST thing to get put away. This prevents having to lean it somewhere, which is how rods get broken.
8. When wading water that's a bit too fast, always angle downstream. Everyone knows to turn their side to the current, but it's better to walk further up, cross angling down, and then continue up.