Maybe it's time to get out of the city. This article from the Boston Globe suggests that city life can negatively affect mental performance and mood in a number of ways. Even something as simple as whether or not you can see greenery from your window appears to have an effect.

link (and other stuff) collection

• A cheap floater-style hydroponics garden: If you'd like to have more indoor garden than a few potted plants, but don't have too much space, either, and are not above automating stuff, hydroponics probably is for you. This is about the easiest, cheapest setup possible. When scaling to wall-sized shelves, you might want to change to ebb-and-flow, maybe even do a Babylonian Gardens-like cascading setup. -- GehWegRevolutionaer