Lately I've been enjoying shooting with Nikon's new
Adjustable Handstrap; it's very comfortable. But then at other times I really need the regular strap so I can throw the D40 on my shoulder at the ballpark for example.
There's no quick easy way to switch straps on a DSLR. So I went to Lowes and bought this inexpensive hardware.
I used the smallest key rings (3/8") from this multi-pak and installed them onto the metal strap loops on the camera.
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Then I put mini carabiner clips on the end of the stock Nikon strap and the new handstrap.
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So now, when I'm shooting around the house I ditch the stock strap in a matter of seconds. And anytime I want to swap out straps it's a snap!