How do you use lemon after squeezing?

After squeezing a lemon, how do you typically utilize the remaining fruit? Do you find creative ways to repurpose it, or do you simply discard it? Perhaps you have a favorite recipe that incorporates the leftover lemon rind or juice, or you might use it for other purposes like cleaning or gardening. I'm curious to hear your thoughts and any innovative ideas you may have for repurposing squeezed lemons.