I find that doing any Self-Imposed Daily Challenging Healthy Activity will improve your life tremendously, meditation being just one type of SIDCHA.
While the benefits differ slightly, the magnitude of benefit from other SIDCHAs -- like exercising, drawing a picture, writing a blog post, writing three business ideas, cooking a meal from scratch, etc every day -- can be just as great. You develop discipline, ability to overcome internal resistance, self-awareness, etc.
I'm a big fan and practitioner of SIDCHAs and wrote them up: http://joshuaspodek.com/sidchas-the-series.