There are some thing that just seem to trigger an immediate urge for crossdressing.
One of them is my wife's bras. When they're ready to be washed, she throws them into the laundry basket in the bathroom. Many times just seeing one of them gives me an urge to crossdress. I'd reallt like to tell her to stick them at the bottom of the laundry pile so I don't see them every time I walk by. But I can't ask her that because we're in a DADT relationship. Just telling her would inevitably lead to a long discussion which is a violation of DADT.