Prepopulate
The Propopulate module is one of the little unsung heroes, IMO, of the drupal module world. Maybe it's a little bit of a niche, maybe it's the sort of glue code others are more used to writing for themselves, but for me, in some of the data-heavy web sites I've been creating, it's a necessity.
I revamped a project management site earlier this summer, and one of the things I really tried to focus on was trying to reduce the number of clicks and pageloads my users had to deal with as they worked with the site. It seems like it's a small thing, but every click creates the opportunity for error, and every pageload puts resistance in the system that pushes people away from the behaviors you need from them.
I've already written about one of my tricks to bring people back where I want them do with my Return Kludge. But Prepopulate is a way to save users the effort of picking a reference when you already know what they need to pick based on the link they click or the page they're on.
Check out Prepopulate, it's worth a look.
