1. blog only relevant things - of course only those things relevant in my own point of view;Oh, it's really a beautiful Sunday anyway ... just imagine... i am here commenting and i already got something to post on my blog :)
2. blog only when you feel like blogging - tho it'll be on a daily, weekly or monthly basis, it doesn't even matter if it'll take a year or more :);
3. and, don't blog reviews on your personal blog - tho this practice seems to be lucrative way of making money through blogging, it's to compelling and may even hog your blog.
P.S. I hate the fact that people are learning farmville and mafia wars but they don't want to learn how to blog.