Real Simple recently had a feature on inexpensive home updates. Their idea for an indoor herb garden was great!
You’ve got them — stacked up under the sink, probably — so make use of them. Plant small potted herbs in vessels of various heights (add a layer of pebbles at the bottom of each for drainage). Wrap them in a heavy-stock paper, secure with twine, and label.
This is definitely on my to-do list in the near future!