[zeroego]

I'm a mid level developer and probably about 5 or 6 on any given day. I do a lot of designing/coding and by the time 3pm rolls around the part of my brain that can think in that way just starts to shut down. Having upcoming deadlines invigorates me and can help me push the number of hours worked up, but it's very much "borrowing from my future self". I try to maintain a steady pace throughout a sprint and 9/10 times it works and allows me to work those 5 or 6 hours a day. I'm still available/at my desk for those remaining 2-3 hours though.