This is a really interesting thread. I'm prohibited at the moment from working at anything other than my full-time job (as a secretary - have a silly clause in contract, technically even volunteering work wouldn't be allowed and I've had smart comments from a few managers about singing in a choir, too - yes, I'm working at getting out of that company!) but have just sent off my application to do the translator's exam run by the Chamber of Commerce/Industry in October, which I've been studying for over the last year. Technically, as the field is almost entirely unregulated, I could just start working as a translator, but, this being Germany, having the piece of paper saying you're qualified is never a bad idea. Also, with that I can apply to the courts to do official translations, for example, of birth certs etc. and I will be able to join the national association of translators, which in turn will offer advantages like reduced insurance rates. I actually did help out a friend recently who had too much work on and it was really nice to do a few hours work and then see the cash in my hand. Also a good way to build up my confidence as she double-checked it before sending it off to the client. When I find a new job, one of my conditions will be that there is no similar clause in any contract I sign. It's very frustrating to feel like there's nothing you can do to bring in a little extra, even if cutting down on spending does help a lot with finances.
I used to sell Tupperware years ago - was terrible at getting people to agree to hold parties but once I did, I sold quite a lot. All you need is to be very enthusiastic about the product and I love Tupperware so that was never a problem. I basically just did it to finance my Tupperware habit and was very bad at keeping track of money coming in and going out but I did make a bit more than I spent. I might start doing this again in the future but it depends on where I end up. I found out recently that there's a severe lack of Tupper ladies in my state but since I hope to use my next job to also move it will depend on whether my new home is the same or not. At this stage I very nearly have enough Tupperware so other than buying new products for my kit, I'd be more focused on making money.
I just had a look at elance, which a few people mentioned and that looks interesting, too. I really enjoy typing up dictations so transcribing sounds like something I could definitely look into. Would anyone who does that care to share more details?