In the laundry, down the drains. Also put baking soda in first. Add vinegar to keep grease clogs down. Also if u have any medical euiptment that u reuse I have asthma and take breathing yz. I use vinegar to " sterilize" the mouthpiece and medicine cup. Learned it from the therapist. Could prob use it on pacifiers, spray on toYs and wipe off, wash windows, clean outdoor furniture ect.
Also u can use old cola to get rust off metal!