The Sixth Commandment of Blogging

Thou Shalt Not Forsake Blogging Out Of Laziness

Being a lazy-ass slacker is no excuse for not blogging. Try to blog every day, and think about what you blog. Try to be disciplined; possibly reserve a time of day as 'blog time'. Write and save entries ahead of time if you feel a rush of inspiration.
Regardless of the reason, a blog that's rarely updated won't be visited. I have better things to do with my time than check your blog. Valid excuses for not blogging: holidays, work or study, sickness, personal stuff. Announce in advance if you can.