You know those evaluations that come with dozens of questions on a whole complicated international development programme (or even set of programmes), to be answered within one week of desk work, one week on-site and one week to tie it all up? They are still around and they are not about to disappear. I used to hate them: The time frame makes it near-impossible to draw reasonably rigorous samples of respondents (for interviews or for a survey) and there is so little you can do and see in a week at the programme site. What can an outsider find out in one week that an insider doesn't know yet? After having worked on a couple of "quick evaluations" in recent months, I have adopted a milder stance. They can generate useful insights. But how? Here are a few tips.