My favorite style of purse right now is the Shoulder/Crossbody Purse as when I wear it cross-body my hands are freer to (browse the sale racks) hehe... see it's a very useful design.
Using the pattern I featured in a giveaway post here, you can also see an example of another one I've created for a giveaway here, I've created some more versions by altering the pattern a bit.