The next time you have green onions, don't throw away the white ends. Simply submerge them in a glass of water and place them in a sunny window. Periodically empty out the water, rinse the roots off and give them fresh water.
This is helpful but how do kids eat free at IKEA? Super comprehensive list of restaurants where kids eat FREE! You might be better served to eat at home, but if you do need to eat out, here's where it can help your budget. Check locally before going.