I was especially happy to do it when I found this "recipe" on Frugal Girls that uses Suave Naturals Conditioner. I somehow managed to acquire two bottles of this stuff and I can't stand using it on my hair. I hate it so much I refuse to inflict it on guests either so this was the perfect solution. 1 bottle makes two batches of softener and the conditioner is only $1 a bottle. Add in the minimal cost of some vinegar and this stuff is a very inexpensive alternative to buying fabric softener.
Just to test it out I used it on our sheets the other day and it seemed to work fine. I used Coconut Natural Conditioner so the smell was nice too. :)
Homemade Fabric Softener, adapted from Frugal Girls
1 cup Suave Naturals Conditioner (I used Coconut)
3 cups hot water
1 1/2 cups white vinegar
Put the conditioner into a medium sized bowl and whisk in the hot water to dissolve the conditioner. Stir in the vinegar. Let it cool a bit then pour it into a container to store it in.
I used an empty V8 Fusion bottle to store this, it holds 46 fl. oz. This is only half of the original "recipe" given on Frugal Girls but I thought this size would be better for me because it allows me to give the bottle a little shake before using (the conditioner will settle a little), and it is a nice size for easy pouring into the little downy ball I use for softener. Of course this does mean I will have to make the softener more often but I think I can spare the 5 minutes for the ease of use of the smaller bottle.