I think the first item I wore was my mom's pink one-piece swimsuit that kinda looks like a two-piece. I guess it's similar to the styles of today. It had thin spaghetti straps that criss-crossed in the back. That was back in 1981. After that, I'm sure I tried on her pantyhose, panties, dresses, etc.
The urge to dress up never went away after that, but I did purge a number of times over the years. Now I haven't purged since the mid 1990s.