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  A Sass `!default` use case
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  Using Polymorphism to Make a Better Activity Feed in Rails
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  Improving the Command-Line Postgres Experience
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  Caching API Requests
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  Faster Grepping in Vim
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  Anti-Pattern: Iteratively Building a Collection
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  Ruby and Python Libraries for Yammer's API
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  Giving Thanks
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  Handling API Rate Limits by Retrying Requests in Background Jobs