Spoons, loving your posts, some of the content sounds very familiar :¬) Oh and I'm a split Christmas parent as well and can recommend Pizza as a Christmas lunch and mention there are parkruns on Christmas day and a number of boxing day races.
Ok so I'm not coming in really until January but....
Relax people, most of you are racing in April or May, a marathon schedule is designed to have you ready to race but it also means there is no rush. If you are racing in May then you have no need to be at 13 miles in December, hell I just had a go at a 1.20 half runner in my club for proudly announcing he did 16 at the weekend.
Speedwork, crucial in all parts of the program. Not just talking a little tempo work. Do some raw speed, if you want to make MP feel easy then running much faster than MP is useful.
Pacing the long runs, if your long run feels hard then a few things are worth looking at:
1. are you running too fast?
2. are you fueling well enough?
3. is it too much too soon
Most people especially novice runners are guilty of No.1., number 2 is something you have to learn as you go along so is a bit hit and miss in training. No.3 is usually in line with No.1, it would not be too much too soon if you were not running too fast.
So my first straight tip for 2012
Don't do your long runs anywhere near race pace.
Have a nice day
Gobi