I recently stumbled upon a company called Tenba. They make awesome camera bags and had just the thing I had been looking for. It's a sling bag that holds just a small amount of gear but does it in a very organized fashion. I will definitely be using this anytime I am traveling or just when we go out for the day and I don't want to take everything.

I'm leaving today for the weekend to go to a friends wedding and in the Tenba, I will have my D50 with my 17-35mm attached, a 50mm, one SB800, and the SU800 commander. I'll also have extra batteries, SD cards, and my iPhone. Check out this great video for more info on the Tenba Sling Bag.