Offline
I've been doing this for many years but to some people it's a new idea. This is a good way to offset rising grocery prices, especially produce prices. It's easy, fun, fast and relatively cheap to do (compared to store prices it's really cheap).
Give it a go using the stackable model. You'll love the fresh taste, not to mention the healthfulness of the greens. My kitchen window faces straight south, so for the last 2 or 3 days, I place 2 boards across my kitchen sinks and set the sprouters on top of those boards so they get the sunshine, which they only need the last couple of days.