Very nice Avatar Locke....

As someone who herself hasn't come out, the trick is just to plan it out when getting your clothes from a store...
I find you can get whatever you want with good timing and a good story....

Go in when the store is less busy. Isolate a friendly looking clerk. Have a story ready...
Alot of your fears can be soothed by a little planning...
And if your living with your folks just hide it. I know myself there are just certain places in a room people don't check. Put your clothes there

Good judgement, like Cassandra said, is key....
Good luck!
-Nessa