I almost forgot about the superb eBay vintage stores !
Take a look at some excellent finds:
Mama Stone Vintage!
Indie Cult Vintage
This adorable Coach Bonnie Leather Crossbody could be yours...for less!
Victoria's Secret PINK has THIS bag in 4 different colors and a LARGER version. Usually I find PINK bags obnoxious , but their bag is simple. Simply PERFECT! Soft leather, large enough to slip school folders in (the large version of course), and very chic. The only negatives are... ITS NOT COACH and there is a subtle imprint of the pink dog at the top. Very subtle.
Otherwise, the bag is enchanting.
Photo via Coach