Mulch your coffee grounds and add them to your acid-loving indoor plants and flowers. Hydrate your indoor plants with your cooled off cooking water. Enrich those same indoor plants with ground eggshells. Fertilize them with your green tea.

There are precautions you must take, however, including not overdoing it. For these cautions, please inquire online for recommendations for amounts and how often you can safely provide these sources of nutrients.