I've heard a few things here and there about sites, including airlines, tracking your browsing habits and and optimizing their prices accordingly. I also heard that about some online shopping sites like Amazon.com but I'm not certain if it is true. I use Ghostery and Adblocker as an attempt to prevent that from happening however, I know that cookies are still created and tracked with those programs running. So my question is, how can I stop that from happening? I don't mind seeing prices adjusted for me so long as I can check for the real price somehow before I make any purchase. I thought using a different browser or perhaps the same browser but in private mode would do the job but I don't think it really is after I've tested it. Any suggestions?