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.
My realization that smoking was associative, led me to try to do it alone. I told everyone in my social circle that i had quit, and smoked in secret when I had to. I don't generally espouse lying but it might be a prerequisite in this case. I stopped using smoking as an aid to social situations, or as something to do with my hands and mouth when i was pensive. I focused completely on the very process and did not accompany smoking with anything else at all. What this method encompasses is, being very aware of smoking, from lighting it, putting it on your lips, inhaling the smoke, exhaling, to flicking the ash and throwing the butt away. I also focused on the sensations in my mouth and lungs, as well as the blood rush. It reduced my daily intake immediately, made me despise smoking, and along with other measures, helped me kick the addiction for good.
Instead of lying you could just set a bounty that you pay $10 dollars to anyone who catches you smoking in a social situation. That will get you to stop smoking in social situations.