Well what I do is try everything I'm not supposed to.
There's some luck to it like MiketheMajora said but not a lot, really my biggest helper is time. For every neat trick or glitch I find, there's like 200 things I try that don't work, like me trying to get up the hill next to Auru in Lake Hylia for example, ya can get up to the very top with some clever tricks but then there's a big invisible wall. x.x
So it's kinda trial and error. Lots of error, lol.
I have a new glitch trick coming up very soon so make sure ya check the forum.

Minimalists will like this one!