If you often drink mint tea or use mint in your recipes, consider growing your own mint plants instead of always buying a plant or tea bag at the supermarket. There's really nothing difficult to it. Find a mint-growing guide here!
Plants have best friends just like people do. Marigolds help tomatoes and roses grow better. Nasturtiums keep bugs away from squash and broccoli. Petunias protect beans from beetles and oregano chases.
Great idea - using glass shelves inside your kitchen window to grow herbs on. The glass shelves don’t block the light from coming into the room, the herbs get as much daylight as possible being by the window, and they’re close to hand when cooking!