I do it wrong so you can learn a new way to do it right.
Systems and Programming
On Bash complete in Ruby.
Link Dereferencing in Ruby.
Basic CanCan with PostgreSQL HStore.
Mocking ActiveRecord to test concerns.
Using HStore to store your tags in Rails 3
Are static configs for things really all that bad?
Rid of those extra tables, use PostgreSQL arrays.
Recursive (sub-)navigation with Jekyll 3.0
Super-simple breadcrumbs in Jekyll 3.0
On Shell Escaping in Ruby.