I have been making my own laundry detergent for a couple of months now. It's really cheap and it works.
This is the recipe that I use. http://www.onegoodthingbyjillee.com/2013/03/super-concentrated-no-grate-liquid-laundry-detergent.html
I keep mine in a plastic liquid dispenser with a measuring cup right next to it. It's super easy and it smells great, too.
I feel like it helps out our budget a little and I feel like a pioneer woman making my own laundry detergent! And I have used the borax to make homemade gak, which is always fun.