Just a note on blocking: My wife and I are flying a 10-leg trip for the holidays/work. When debating blocking (Plat and Gold), I thought grabbing both ends of a 3 seat block and hoping the middle would stay "double blocked" would be risky, because at that busy season we wouldn't really want some unknown splitting up the Kids.
So I requested the middle seat for me and the window for her, figuring "If the aisle stays blocked, great! If not, we are still together."
I then heard (thank you FT) that an Elite member in the middle row can NOT block seats (because selfish Elites could try and get 3 seats for themselves). So I called back and requested the "aisle-window combo."
If any of you are in my middle seat, just let me know if you would rather trade for the window or the aisle, or whether you would prefer(

) your middle seat!
-KP