I used to care, but then I accidentally wore my helmet into a coffee shop and no one even noticed (frequented by bike riders on the weekend). Then I noticed it was one less thing to fumble with as my husband rides away.
My husband carries a ball cap. I also have curly hair, and usually slide my sunglasses up on top of my head to minimize to mess. Otherwise, I bend over and give my hair a quick shake, to "unstick" what was stuck to my head. Either way, I'm a sweaty mess and probably shouldn't be walking around in lycra.
If people do look at me funny, I remind myself they are probably out of shape and drove their gas-sucking SUV down the block to buy a cup of coffee :-)
"Well-behaved women seldom make history." --Laurel Thatcher Ulrich
'09 Trek WSD 2.1 with a Brooks B-68 saddle
'11 Trek WSD Madone 5.2 with Brooks B-17