Self-imposed constraints (a.k.a challenges) can be a great tool for accelerating your frugality, building your self-esteem, and having fun at the same time. Original article at http://earlyretirementextreme.com/day-18-join-a-challeng.html A more detailed discussion of the ERE philosophy at http://valiantgrowth.com/e30 Get Early Retirement Extreme The Book at http://valiantgrowth.com/ere Donate to the podcast at http://valiantgrowth.com/support