Now that it's summer, I really try to wear sunscreen every day, even if I'm not heading to the pool or beach. I'll slather just about any sunblock on my body, but I'm super picky when it comes to my face. It can't be sticky, greasy, or smell weird -- all three of which describe so many products with SPF!
Through much trial and error, I've found some really great sunscreens made just for faces that can be used all year round (which is ideal). No greasy, pore-clogging, stinkiness at all!