Recording where you've been

It is a truth universally acknowledged that genealogists should record the resources they've consulted, and exactly who/what/when/how they were searching for, even if there was only a negative result.

For example, people undertaking a one-place-study who have painstakingly trawled through several years worth of the Times Online Index, drilling down into all the results just in case there's something relevant even though most of the time it's a false alarm, should have recorded the search terms they were using and exactly which year they had gotten up to. Furthermore, they should not then lose the piece of paper and/or electronic file upon which they'd scribbled this incredibly useful information.

GGGRRRR!!