I use it to lasso rooftop antennas and play SpiderMan! <img src="/images/graemlins/wink.gif" alt="" />

So far I've used it for two things in urban real life, both car related. (1) To reenforce a radiator hose attachment that was leaking (used a constrictor knot). (2) To tie up the shades on my van-conversion's windows after their normal mechanism failed and they fell down, blocking my right-rear-side "backing up" driver's view.

Around the house I've used it to tie trash can lids in place in the wind, to make quick clotheslines when our dryer went on the blink, and to tie an extension ladder in place when it's feet kept sliding on a slippery deck. Also as a temporary holdfast when I needed a third hand to keep something in place while working with it.

Around a campsite, the uses are too numerous to mention.