Lemons have multi-purpose use around the house. Hand cleanser, windows, air freshener, make lemon oil, lemon spray.
I have a lemon tree and sometimes there are too many or they are too ripe to eat. I use them around the house for many purpose. They are an excellent antibacterial source. They smell great. You can makes all sorts of cleaners and fresherners with them. Google it, you will get a list.