Totally in with the 'make your own soap' mentality. I've been making my own laundry soap and liquid hand soap for ~6mo, and I'm still working through the first set of supplies I got for both. Only downside to making it yourself is the time commitment, but I've got it to a point where once I have the batter made, I just throw it and some distilled water into a covered mason jar, put in a covered stock pot with enough water to get around the inner water level and just let it simmer for a few hours.

It's actually super simple to make my laundry soap, it's just a 6:6:2:1 ratio:
Baking soda:Epson salt:washing soda:sea salt

Works great and take the smell out of my potty training son's laundry.