Freshly laundered clothing on the Nine Days?

A common question that I get is that during the  Nine Days you're not allowed to wear freshly   laundered clothing. We stop wearing freshly  laundered clothing as a sign of morning for   the Beis Hamikdash. What if I forgot, and all  of my clothes are freshly laundered? So there's   a famous heter that people know, that if you put  your clothing on the floor, then it's no longer   considered freshly laundered. It's important to  keep in mind that this heter is only when you put   your clothing on the floor outside or on a dirty  floor, so that it ruins the freshly laundered feel   of your clothing. Simply putting your clothing  on a clean floor does not help. And secondly,   this heter should only be used, the Poskim  recommend, at the beginning of the Nine Days,   but not on Shavua Shechal Bo, not on  the week within which Tisha B'Av falls.