I get up quite early to go flying ... usually getting my first flight just as the sun is coming up. I though it unusual that if there is any wind at all, its toward the sun. I wear dark polarized glasses, so its more of a nusance .... but after awhile I started using it as a tool. There is roughly a 2 hour window that I can use the sun as reference. Loops, manuevers that intersect, and wingovers can be practiced using the sun as the center. If I'm off target, I can tell right away.
Probably not the best thing to be doing, but rather than fighting it, I've been using it. Florida doesn't offer much in the way of cloud cover, especially in the morning.

FlySafe! Larry (Larrys4227)