Lawksamussy writes "Having just bought a really old house that's on the verge of falling down, I'm now trying to find a way to pay to fix it up. I have a great job in software development that pays the bills, but I'm looking to earn some extra cash in my spare time. Whatever I end up doing has to be reasonably lucrative (or at least have the potential to be so), not require any specific time commitment, and be doable equally well from home or from a hotel room. I'm also keen that it should be sufficiently different to my day job to keep my interest up, so the most obvious things like bidding for programming projects on Rentacoder.com, or fixing up neighbors' PCs, aren't really on. Above all, it should appeal to my inner geek, otherwise my low boredom threshold will doom it to failure before I even start! So, I wonder if any of my fellow Slashdotters run little part-time ventures that they find more of an inspiration than a chore... and if they are willing to share what they do and perhaps even how much money they make doing it?"