Use that double pawn, Luke !
A while ago a chess friend told me : "Should you not take some more care about your pawn structure ?" after I again had a game with one or more doubled pawns.
Well, double pawns do have certain advantages, besides the disadvantages. Time after time however I see certain, say 1500 rated chess player very persistent in avoiding doubled pawns, or give up castling. It sometimes seems that they would give up a knight to avoid doubled pawns.
With very very great joy and open mouth I looked this month at a game Anand - Aronian, where the super GM and former world champion Anand played just like I do, and got not 1 but 2 doubled pawns, and won in great style in a miniature !!!
Wooooow, great game Vishy !!
Now let's look at some similar but (cough..) more mediocre and non GM games of myself where I also used those doubled pawns.
Now let's look at some example about pros and cons of doubled pawns.
Strong points :
1) Semi open file usage :
2) Square control :
Weaknesses of doubled pawns :
1) A piece, for example knight can, in some cases, use the square in front of the doubled pawns as a strong square
2) In the endgame doubled pawns can be a big weakness.