I used to carry the largest purses i could carry, so i could fill them with everything i 'might' possibly need.  Baggallini was the solution for me to making a change because it is such an organizer that i can still carry cards, checkbooks, cell phone and keys and not be weighted down.  when necessary to carry a larger bag, i just stuff this wallet sized bag into the larger bag.  I love this style and size and will be purchasing more.  I found amazon's price to be the best also for this particular color.