My big leather handbag is simply too heavy to carry all over the city. So, today I purchased a Longchamp nylon and leather tote bag. It seems that almost all French women have these. They're light weight, they fold-up for travel, they have a zipper closure and, at 62 euro, they're not too expensive.
For years, I've carried a Longchamp change purse and I absolutely love it. If this bag turns out to be as handy as that little purse, I'll be thrilled.