i tend to use grep from the shell. (linux) what i grep depends on what im tryna find but,
for me a common search is a passing grep a list of words associated with webaccess. Welcome, login, password, thankyou etc This sometimes differentiates a users casual browsing from actively browsing, having purposely joined a website for certain content and going thro a login process.
saves poring over webcaches "looking" and refutes the "oh i just stumbled upon this"
If you are going to add a Sticky, maybe it could be broken up into product. For example when I go to training or conferences I like to swap AccessData Registry Viewer .rsr files (registry search strings for CC #s, UPS and FedEx tracking and similar), Golden Dictionaries (probably too large to post here), etc.