Not a true make it yourself but....a stretcher
Everything today is 'concentrated'. But I noticed that my kids over use the dish detergent. When they do dishes we can go through a bottle in a week. When it's me doing it, that bottle lasts for a couple months.
I learned a trick :) I save an empty bottle. I fill it 1/4 with the detergent then top with water. Ah, but it's watery, no one likes watery soap. SOOOO, add 1/2-1 tsp salt to it shake it up. :hocus:It will gel again. I use dish deternegt for hand soap and do the same thing. Dh HAS to use 2 pumps, what a WASTE, but once reduced like this, he's using really a 1/2 squirt if that. One bottle now lasts 2 to 3 months. :D