Cling wrap is useful for keeping food fresh, stopping microwave splatters and even storing paint rollers, but applying large amounts can be tricky when it tangles up and sticks to itself. An easy way to avoid that issue is to store it in the freezer.
I was a bit sceptical when I first got told this hint by a friend, but after testing I can confirm that it works pretty well. Freezing doesn't make the wrap solid, but it does stop it from sticking to itself. You might not want to freeze the cardboard box the wrap is supplied in, but you can easily trim the wrap using kitchen scissors rather than box's serrated edge -- a strategy which also makes it less likely you'll waste it.