Which do you prefer?

I personally 'prefer' plastic in that if my purse gets stolen, my money is still protected.

However, on another note (probably a more valid one in some ways) I by far prefer cash. For whatever reason, I burn through money SO fast when I'm using my debit card or credit card. Maybe its because I don't have a visual of it all disappearing out of my purse. I don't really know. But for whatever reason, if I have cash, I tend to hold onto it.

What about you?