I didn't really like the strap that came with my S95. It's lacking a cinch or something to make it fit more securely around your wrist. I didn't have any extra straps at home and I didn't really want to go out and find another one so I went to Home Depot and found this 5/16 inch grommet that I use to secure the strap around my wrist. Since this camera was going to be used by more than 1 person, I wanted to make sure there was a better option than tying a knot 3/4 along the way.
At Home Depot, this is item number 161780 and cost me CDN$0.89 cents before tax. It was found inside a numbered bin in the isle that the screws, nuts, bolts and other fasteners were located.