Tonnes. Music in relation to memory/events is very important for me.
Albums I don't even like that much are "milestones" because of when I heard them in relation to what I was doing. (Rufus Wainwright Release The Stars, Tori Amos Abnormally Attracted to Sin...)
A lot of jokes my friends and I have have their origin in music or songs too. Ride by Ciara and Take It Off by Ke$ha will always remind me of my uni trip to Amsterdam - as we sang them fully out loud whilst walking down the streets, high. I also invented the now infamous dance routine to Take It Off there too..