Achievement hunting!

I used to be an achievement addict, then I stopped going for gamerscore and just played games because it's fun. Now I've started somewhat again, I'm competing with a friend and want to beat that person's score in the near future. Here's my progress in October, recorded by the excellent page trueachievements.com:

I was on 4375 gamerscore in the start of November (I happen to know that I've already beaten last month since I'm on 5500 now ^^), it'll be interesting to see what my score is in December.