I am thinking, now that I am a senior (junior-senior?), of chucking the t-shirts and wearing a white cotton dress shirt, long sleeved, with jeans and ball cap. I might consider a different kind of pants but I am not up on seniors' fashion so suggestions would be appreciated.

I was considering a Tilley hat, but that seems like it might be a bit too warm. Plus, my good ol boy (redneck) side says "Tilley?" Then again, it would keep the sun off my ears and I am safety concious.