Looking For: Sunblock

The reality of my life is that I don't go out in the sun much. Mostly, I get a little sun on the way to and from my car, and when I go walking at a time when the sun is at the right angle to get at me instead of my route being totally shaded.

However, sometimes, I spend enough time in the sun that I actually need some sunblock, and it's getting to be that time of year. I dislike sunblock for two reasons:

1. I hate the way it smells, and I'm sensitive to scent, so I really notice it, especially when it's on my face.
2. I have very oily skin, and most sunblock is pretty greasy.

I also don't think there's enough evidence yet on the long-term effects of nano-particle sunblocks for me to be willing to try that.

Any suggestions?