I've found myself in a post-triathlon slump. After a day off initially, I stayed pretty active for a week. And then last week hit. I barely scraped by to salvage my chain-game and keep it going.
Last October, I took a month off after our first half marathon. Once I got back into working out in November, I vowed to myself that I would never go a full month without working out after a race again. It was too hard to get back into the groove, to force myself to get going again. Once I achieved a "new normal," one that was filled with watching ESPN or whatever garbage was on television, it was hard to reverse course. It explains why establishing yourself in the first place is so difficult, and why so many people fail before ever getting going.