I found LOTS of recipes for homemade color catchers, totally renewable and so inexpensive! Now I havent tried it yet myself, but most of the "do- it yourself" things I have found on Pinterest have been pretty good. I am now making my own clothes softner solution and so on. For sure I would TEST it on something you know bleeds before doing it with anything else..... hope this helps!
http://www.pinterest.com/search/pins...lor%20catchers