Thought it might be an idea to share experiences of different facial sunscreens, as I have vowed to wear SPF 50 or higher every day. Been doing a bit of experimenting, anyway, and thought I would share 
I'd been wearing Clinique SPF 30 (one in the small yellow tube) for years. Its OK - the usual thick, white, slightly chalky sunscreen texture, but not too sticky once its been on for a few minutes. Make-up goes on Ok-ish afterwards. Stings if it gets near your eyes, though.
Last few months have been using La Roche Posay Antihelios Ultra Light Fluid SPF50 (I think thats the name, sorry!).This is pretty good stuff. Very light and not at all sticky. Eyes don't sting. Make up goes on OK. It gives me a slight sheen, though, that I don't entirely love. There is a tinted version that is a bit orangey on my pale skin, but with a fake tan on the other eek, it was nice, gave me a healthy glow.
This week have tried Neutorogena Dry Touch SPF 100. Hated it when it went on. It was really shiny and sticky and smelled horrible. Had to leave it about 15 mins before I could apply make-up. However, make-up went on OK and the shiny/sticky feel and look disappeared after half an hour or so. Quite impressed for such high SPF. I'd deffo take this on holiday somewhere hot.
And finally...this one is my absolute FAVE. Its so bloody good I am wondering whether it can possibly actually be as high protection as it claims? Biore Aqua Rich Watery Essence SPF 50. Its SO light, smells nice, absorbs quickly, make-up goes on beautifully, not even a tad sticky or chalky. Its amazing stuff.
Please safe any good sunscreen finds you have had, too. Also be interested in body sunscreens (SPF 50 pls). I use the Nivea clear spray, which avoids the sticky/white/chalky look but smells like a chemical plant.