About three weeks before Christmas, I was in the produce aisle at my local store, and I got to thinking that basil might root easily in water, like the pothos plants that I had just finished potting up. I found a package of nice-looking leaves with a good date on them, took them home, and put them in a vase near a window.
Three weeks later, they had enough roots that I felt I could transplant them into a pot. They seem to be happy enough, considering that they need more light than I can give them at the moment.
So far, so good. They smell heavenly and are a good antidote to the dead of winter. Next time you go shopping, pick up some sprigs of basil and give it a try.