How do you manage to carry all that Realtor stuff?!

I have come to realize that I am a very clumsy person.  I have suspected it all my life but becoming a Realtor has etched it in stone for me.  I am forever dropping my bag, fumbling with the lockbox, dropping the key, losing my paperwork all over the floor, etc.etc. etc.  I have decided that one great bag would save me from looking like a klutz in front of my clients.  If I could only free up both hands for use at the same time, I probably would not drop nearly as many things (I have learned not to go for broke and expect to stop dropping stuff altogether! LOL).

So, the quest for a super great bag is on.  I need something that looks stylish and not too masculine.  I would like to have something large enough to carry my camera and a wide angle lens, my Supra key, my phone, keys and a very small wallet.  Compartments would be nice.  It would be great to find something that would also fit a file folder for paperwork.  It must allow me to work hands-free so shoulder bags may be a problem.

What's a girl to do?!  Remember, it must free up both my hands because I am a total klutz.  Here are some items I am considering:

I bought the big LLBean tote bag with a zipper.  It is roomy, very sturdy, and I love the look.  Problem is that it is just so big.  And I think it would slip off my shoulder when I am bending over to get the key out or trying to get the door unlocked.  Yes, I could sit the bag down and that might be a good solution. 

A nice leather backpack is also a valid solution.  I might give that one a try; I actually already have one.  I could put the backpack on while messing with the door.  Or I could sit the bag down on the ground and hope it doesn't get dirt all over my back later.

I love the look of a messenger bag.  I could throw it over one shoulder and let my body hold the bag while I am fiddling with the knob.  I could possibly find one that would be large enough to hold a file folder too.  They just look so masculine and clunky.  I love the functionality of the messenger bag but do not love the look when I am wearing it (although it could also be used to cover those extra Easter candy pounds).

So, my question to you all is this:  how do you manage all of your stuff when you are out with clients?  Help me out guys!  Do you have a tried and true method to carry all of the things you need when you're out with clients?