I have made a few variations of the Heart of Mary messenger bag. I love it. I made the small one last fall before going on vacation. I'm in the process of designing a bag myself... it is hard to find the *perfect* bag... I tend to shy away from ones that I only see a picture of since you really just don't know if it will be perfect.
I don't change my purse out every day - or even often. I begin to use one and I stick with it for a long time.