Pet peeve of the day...or season

I am sure this will make me sound like a old lady, and well basically I am an old lady in a young lady's body. Being as it is summertime everyone seems to be wearing skirts, short ones, long ones, and everything in between. There seems to be a major lack of slip wearing that occurs. Most girls/women these days don't seem to think that wearing a slip is necessary at all even when the skirt is completely see through. Drives me crazy. What are your biggest pet peeves lately?