As you can see with this thread, there are a lot of different opinions on what to do with crosswinds. For me, the simplest thing to remember about crosswinds is that if the wind hits the top of the disc, then the disc will drop quicker. If the wind hits the bottom of the disc, then the disc will be carried more by the wind. I try to stay away from multi-directional throws (hyzer-flips/flex shots) with crosswinds.
Good stuff, keep it simple and think about what the wind is doing to the exposed side of the disc. Keeping it low prevents some of the crazy shots crosswinds can cause too.