Another vote for pants' side pocket. It's a good measure against thieves from places I've lived at. It's too easy to snatch if it's not accessible to you, especially in bags, if they go unattended. Bonus points if you have a zipper sealing the pocket.
I've had things stolen from me in stupid ways and I'm not falling for it ever again.
I hate losing things as it is already. It makes me feel disorganized. Irritates me even more when it gets stolen against my will.
I put my wallet in my purse,
But when it's usually going out to subway or any fastfood restaurant
I usually bring money and squeeze it in my shoe, & sometimes bra [ for when I'm wearing sandals, ]
That's where i usually put the money for when my clothing doesn't have any pockets .