There's something you should know about me: I am really bad at counting laps.
In the past, I've let myself believe that it's because I'm busy, or fried from exams, or whatever the case may be. But I'm running out of excuses.
Yesterday I was supposed to do 2x400 (yeah, short workout, I know - my coach has really backed off on the swim volume) and I think I did a 450 and a 350. Today was a 1000yd time trial. I came up with a brilliant plan. Instead of counting the yards, I would go by letters of the alphabet. So 1000yds = 10x100 = 10x4 lengths = 40 lengths = 40 letters. Which means I had to go through the alphabet once and then around again to H. So I'm swimming along, all proud of myself for my brilliant plan, which was clearly brilliant because it was working so well. I didn't lose count at all. I get done, all proud of myself for counting correctly (what am I, 3?), look at my watch, and realize there's no freaking way I went that fast, even with my recently-found speed. That's okay, I thought, I'm probably only off by a little.
When I got home, I sat down to figure out exactly what happened. Turns out my brilliant plan would have been more brilliant if I had gone through the alphabet correctly (again with the apparently regressing to age 3). So 40 letters is not once around and back to H, it's once around and back to N. Which means my 1000yd time trial was actually only 850. Crap.