For the longest time, my mom wouldn't let me look inside her purse, insisting I simply bring it to her. In recent years, she's sent me inside those hallowed pockets to try to fetch various items. The time it took me has made me understand why she used to just do it herself.
My girlfriend doesn't have a purse. I usually end up carrying her driver's license and debit card in my pockets when we go out.
I don't mind when my girlfriend goes through my wallet. I used to mind horribly when my ex would do it, because she was the jealous, frightened type to whom I had to explain everything, including a membership in the Bathroom Reader's Institute. Things like that make men leave.