trellis laid on an angle for climbing plants; good solution for heavier climbers (quash, watermelon) b/c of thickness & strength of wood panel. Once the vines start climbing the trellis, they provide shade for lettuces underneath.
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.