The projects where I've wasted most time, in retrospect, were the ones were the requirements were bad. Either the architecture was externally imposed (without a

The projects where I've wasted most time, in retrospect, were the ones were the requirements were bad. Either the architecture was externally imposed (without a proper understanding), or the solution was complicated by use cases that the customers just didn't need. Pushing back a little on hard-to-implement use cases usually wins you more time than typing faster. ;-)