I use color catchers all the time for my laundry and my quilts and they work great. Sometimes I put two just to be on the safe side. Also it is a second nature to me to pop one in with my laundry. It is a habit I suppose. I realized how well they work when I washed my 10 years old red sheets that were previously washed at least 1000 times and the color catcher came out as red as the sheets.