Sometimes, people have life problems that can be entirely solved by doing one thing. (doing X made my life 0.1% better, PERMANENTLY!) These are not things like "This TAP made me exercise more frequently", but rather like "moving my scale into my doorway made me weigh myself more, causing me to exercise more frequently" - a one-shot solution that makes a reasonable amount of progress in solving a problem.
I've found that I've had a couple of life problems that I couldn't solve because I didn't know what the solution was, not because it was hard to solve - once I thought of the solution, implementation was not that difficult. I'm looking to collect various one-shot solutions to problems to expand my solution space, as well as potentially find solutions to problems that I didn't realize I had.
Please only put one problem-solution pair per answer.
I used to have really strong emotions that could be triggered by trivial things, which caused both me and the people I was around a lot of suffering.
I managed to permanently stop this, reducing my emotional suffering by about 90%! I did this by resolving to completely own and deal with my emotions myself, and told relevant people about this commitment. Then I was just pretty miserable and lonely feeling for about 3 months, and then these emotional reactions just stopped completely without any additional effort. I think I permanently lowered my level of neuroticism by doing this.
The next level is presumably, resuming offloading only the emotions for which sharing the processing work is beneficial (shockingly few qualify though)