Cooking tips/tricks you have discovered on your own

Meaning it's ineffectual?

In my experience, it's unnecessary. I had always rinsed the hell out of it because a couple of articles recommended it before the first time I made it, and the rice always came out fluffy, so I thought it was because I was careful about rinsing it. Last year, I made a batch specifically to turn it into rice pudding, and I left it unrinsed because I wanted all the starch for creaminess. It turned out just as fluffy. I've done it unrinsed every time since then, and it always comes out fluffy and perfect.

4) Washing greens in salted water makes more dirt release than washing them in unsalted water.

Oh, that's pretty good. I usually fill a large bowl with water, submerge greens, remove, dump water, repeat until there isn't sand in the bottom. Effective but a pain and uses a lot of water.