I really love this Shout Advanced stain removal spray and find it works even better than regular Shout spray (which is pretty great itself). It is advertised as being especially good for removing set-in stains which I find to be true. I only do laundry about once a week and with this spray can apply it right before doing my laundry on old stains or can apply right after spills and then let the garment sit for a couple of days without discoloration occurring. Truly a great product; only problem is that it can sometimes be hard to find as not all retailers stock it.