Keep the seeds from tomatoes, cucumbers, and even strawberries to grow new plants! Try sprouting your seeds in eggshells, then moving your young plants outside or into larger indoor planters when they’re ready.

Grow new onions by simply placing the leftover root end in a pot under a small layer of soil.

Stick toothpicks in an avocado pit, then prop it up in a small glass filled with water. Half of the pit should be underwater, and it will start to grow roots in about a week or two. You can use this same technique with sweet potatoes and even pineapples!

Sprout new lettuce by placing the root bottom into a glass of water. Leave it in a sunny spot for a few days and you’ll notice new leaves begin to form!