Not sure where I first heard this (and it applies more to single developers), but I find this very true: when estimating the time needed to perform something, t

Not sure where I first heard this (and it applies more to single developers), but I find this very true: when estimating the time needed to perform something, try imagining how much time ANOTHER person would need. In general we underestimate the amount of work when thinking in first person; we are much more accurate when assessing the ability of others.