Keep
It makes keeping config information pretty easy.
Install
gem install keep
Usage
require 'keep'
keep = Keep.new('config/settings.yml')
keep.set(:password,'Ellen Page')
keep.get(:password)
Just tell Keep where to keep things, then tell it a key and what the value is.
Keep currently serializes to YAML (although different backends are likely to come next- pull requests welcome).
More
keep = Keep.new('config/settings.yml')
keep.present?(:password) # => 'Ellen Page'
keep.keys # => ['Ellen Page']
Other important information
Nothing else is important.