I'm using stackable plastic boxes so I can have a kind of drainage system that doesn't make any unnecessary mess or dampness, and so I can easily move the plants if needs be. At the moment they're just in the corner of the kitchen area , between the washing machine and the window - a nice warm spot that's starting to get some sunlight. The top box has holes in the bottom to allow the water to drain into the box below, which can then be emptied as needs be.
The trick apparently is to add soil on to the shoots as they grow, until your container is filled. Hence the space left for this to top up with soil as the plants grow.
A little inspiration:
A couple of useful links:
Let's all do this.