These all tend to be instant earners. The rarer the skill (and the better you are at it), the more you can expect to earn. It can be tough to find great web designers and developers, for one. As Ashley Faulkes, founder of Mad Lemmings explains, one of the biggest reasons behind this is the fact that the industry is overrun with cheap-yet-underskilled designers and developers.
Complete errands or tasks for the elderly. Older people often need help with buying groceries, cleaning their home, performing home maintenance, and paying bills. To find clients, contact your local community center or church to find out if anyone needs help. Additionally, you might post an ad in your local classifieds or talk to people you know to find out if they know someone who needs help.