OK this is not really a lesson learned for me. I never thought tights were pants. OK, maybe for a few days when I was 4 or something, but really not since then.
But Kat told me about this website a long time ago and then recently Sally proposed it as a lesson, and I have to say that there are many times on the Green Line when I really would like to point out to someone (older than 4) that tights are NOT pants!
Jane's Lessons Learned 
Wow, do I agree with this. Another category includes bras! I don’t want to see anyone’s undergarments. I don’t care if they are “only” bra straps! Wear the right bra for the right blouse or top.
Love this!! And totally agree!!