If there's something that everybody hates about Magento it's endlessly configuring your modules before being able to write some code. I'm trying to collect a list of common Magento configuration errors for a future project that's I'm close to launching.
I'm looking for specific examples of things like using the wrong naming convention on classnames, forgetting the <class />
wrapper when setting up grouped class names. Little things like that that drive you batty for hours until you realize your error.
The more details the better!