Limits

Do you have a limit as to how many errands/household tasks you can accomplish in a day? Today I got up and out the door and had hit four stores (attempted a fifth but I forgot about the street festival taking place in front of it) and done four loads of laundry before 11 :30 am. Granted, that's not really THAT impressive, but I avoided crowds and crazy Sunday traffic, so I was feeling pretty good. Problem was, I still had about eleventy-hundred more things to do. I sort of got so busy being proud of myself that I putzed for about 1.5 hours. FAIL. Is it just me, or does this happen to you too?