I'm home sick today (trying to recover because we are seeing Seinfeld tonight!), but not too sick to attempt a DIY! I'm trying to use bleach but nothing is happening with it, even undiluted. I know MaryK and others have bleached out jeans, and I'm only trying to do a galaxy print on a t-shirt via spritzing and blow dryer.

I'm using Clorox bleach. Does bleach expire or get weaker? Is there a better brand for this type of project? TIA!