Tomatoes need calcium to achieve their full flavor potential. When planting tomato plants crush up (to powder) about 4 or 5 egg shells and put them in the bottom of the hole. Then plant tomato on top. They'll provide calcium and prevent blossom end rot.
Regrow-Basil Put clippings from basil with 3 to stems in a glass of water and place it in direct sunlight. When the roots are about 2 inches long, plant them in pots to and in time it will grow a full basil plant.