Reasons it would be ok for me not to blog twice a week:
1) If I am hit by a car.
2) If I fall down some stairs.
3) If the internet breaks (or is stolen).
4) If China rings and asks me to stop as my blogging is further aggravating the economy.
5) If I find a brick.
6) If I am mauled, seduced or written to by a bear (of any size).
7) If I am having a bad hair day.
8) If I feel like a sandwich.
9) If I forget.
10) If I remember and am fully able to but then can't be bothered.
...
I'm also thinking of running for election.