My Camera Holder Techniques...
I haven't used a neck strap for carrying a camera in over 5 years. (More than that really.) I never liked neck straps and I love the diagonal strap method (Black Rapid, et al.) where the camera hangs at your hip. However, sometimes having a strap at all is too much. Carrying a DSLR pretty much brands you as a Geek no matter what but I still try to minimize it when possible. So I came up with a way to have the camera at my hip without a strap at all. It's hard to eat and drink when you can't put down your camera. I use a true climbing carabiner on my belt. It's large, precise and sticks out just enough. I tried this with the cheap smaller carabiners (which I use for a million other things) but they aren't big enough to manipulate on my belt. This is exactly what I purchased so I would have two and the bent style works best...
http://www.rei.com/product/809731/black-diamond-positron-quickdraw-setThis evolved from what I do when on campouts. I have a simple rule when in dirty environments or where lots of kids are running around knocking things off tables, spilling things, etc. I never set my camera down on anything. It's either hanging off me somehow, or it's hanging off something else (preferably at eye level or above) like a tree, a tall branch or a structure beam. To do this I simply use bungee cords or whatever to allow the use of a carabiner to connect the loop that is screwed into the 1/4-20 socket on the bottom of the camera. I also will hang a camera(s) from a secure carabiner attached to the head rest in the car because I know the camera will not fall, fly or otherwise be damaged while driving. This is faster than stowing it in a case, esp if I want to leave a flash, etc on it. I also hang a camera(s) from baker's rack shelving in my office sometimes to get them out of the way.
Bonus...
I also use a Nikon AH-4 Leather Hand Grip on all my cameras. As a result, the plate on the bottom gives me another place to attach a standard 1" steel keyring which hangs over the bottom corner a bit because I reverse the plate when I install the grip on the camera. My strapless carabiner on belt carry method can be used with or without the AH-4 but it's easier with the AH-4 + keyring and I think it hangs better as well.
http://www.the-digital-picture.com/Reviews/Nikon-AH-4-Leather-Hand-Grip-Review.aspxSo to summarize - bungee straps, belts, carabiners of all kinds and 1/4-20 screw in loop devices to hang from are all very handy to secure the camera in many different situations...
