Just do it. Buy at the store or order online. Personally I buy at the store and nobody seems to notice. When in doubt, use the self checkout. I'm doing it now and it feels so good. I'm nice and dry for now at least.
Anybody ever hold a vibrator against themselves while wetting? I think there's more cum in my diaper than anything else. Fuck, that was good. I need a spanking for that, but can't take off my wet nappy.