This exercise in self-discipline will teach you that blogging is a compulsive and nasty habit (like smoking or gambling) that should be eradicated. (And, for the same reasons.)
If Jesus is not your lord and savior, give up blogging for Lent.
Blogging afflicts believers and non-believers alike. Don't be fooled by lecherous teachings to the contrary. (Recall: doctors once had a preferred, healthier brand of cigarette. And roulette table.)
Spend your extra time helping children, the needy, the homeless, or the whales. When you're done, don't blog about it you quaestuary.