If there were a fee on grocery bags would it cause you to bring your own bags to the store? How high would the fee have to be in order for you to change your habits?

The state of CA is currently considering a bill that would place a fee on grocery bags similar to how its done in Europe. Ireland is a good model. In Ireland about 95% of people bring their own bags to the store. The per bag price is about 30 cents per bag I believe.

If you had to pay 5 cents for every bag at the register would you pay it or would you start to bring your own bags? What if it was 25 cents? 50 cents? a dollar? How high would the price have to be for you to want to start a new habit of bringing your own bags?