IIRC, the most actionable and strong effect in happiness research is to spend much more money on others—giving people things, buying your friends food/drink. The effect does not intensify with price, so buy others lots of little things!
Lukeprog’s excellent post on happiness summarized a lot of this research, and although money itself does not correlate particularly strongly with happiness above a certain level, there are a few things there that money could certainly help with - trainers for various things, social life (better clothes, going to more events with people), moving to avoid commute or trying things (e.g various audiobooks) to improve it—so give it a skim and see if anything jumps out at you as suitable.
Or, if you want more directly related to money, read this.
Abstract:
The relationship between money and happiness is surprisingly weak, which may stem in part from the way people spend it. Drawing on
empirical research, we propose eight principles designed to help consumers get more happiness for their money. Specifically, we suggest that
consumers should (1) buy more experiences and fewer material goods; (2) use their money to benefit others rather than themselves; (3) buy many
small pleasures rather than fewer large ones; (4) eschew extended warranties and other forms of overpriced insurance; (5) delay consumption;
(6) consider how peripheral features of their purchases may affect their day-to-day lives; (7) beware of comparison shopping; and (8) pay close
attention to the happiness of others
IIRC, the most actionable and strong effect in happiness research is to spend much more money on others—giving people things, buying your friends food/drink. The effect does not intensify with price, so buy others lots of little things!
Lukeprog’s excellent post on happiness summarized a lot of this research, and although money itself does not correlate particularly strongly with happiness above a certain level, there are a few things there that money could certainly help with - trainers for various things, social life (better clothes, going to more events with people), moving to avoid commute or trying things (e.g various audiobooks) to improve it—so give it a skim and see if anything jumps out at you as suitable.
Or, if you want more directly related to money, read this.
Abstract: