select, collect, .... all these methods work like a breadth-first search. With functional, it will work like a depth-first search. It's not faster, but it needs lesser memory.
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Doing the simple stuff so you don't have to
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Extract cookies from Chrome, Chromium or Firefox sqlite cookie stores into a wget-compatible cookies.txt file
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Extraction of the ActiveRecord::Base#import functionality from ar-extensions for Rails 3 and beyon
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Flexible static sites generator suitable even for big and complex sites with dynamically generated pages such as pages for each tag etc (not on the fly obviously as it just produces HTML).
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