I voted for "unread posts" because thats my daily routine. However, if I am trying to catch up after a long weekend I prefer to go by categories. I find that everything becomes way more manageable that way. I usually start with the general information categories (ie, wedding attire, STD's, etc.) and work my way down to the location specific sections (starting with RM, ofcourse ). Once I feel like I have adequately caught up, I go to the Newbie section and say hi to everyone
Wow... I am a methodical BDW posting machine