I was watching My Life As Liz and even though the show is a total set up I realized that I have been in her shoes when I have to randomly leave with only my phone. I used to never carry cash on me because I would depend on my card so much but once we all got stranded. It was such a horrible feeling to have to borrow money from strangers! Ever since then I make sure I carry at some kind of cash in my pocket or purse. At least something that can get you somewhere.