I was just nonchalantly scrolling down facebook when I noticed these ads from sites I've shopped from and stuff I'm generally interested in (like makeup and clothes, etc.) and it was just kinda jarring. I never post anything on fb at all. Just recently I saw an ad for contacts and it kinda creeped me out how it seems they knew I was a contact lens wearer. How do you feel about targeted ads and have you bought anything from those ads before?