What hurts you the most in web soft dev?

Lets make a community reality check of pain points we have. Results at: https://docs.google.com/spreadsheet/viewanalytics?formkey=dGMxODJTSTlpR3JJeGVIYVdaazhmTUE6MQ#gid=0 This list is not finished. Please suggest other pain points
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Hidden CSS Errors (non-existing properties usage, not used properties, deprecation, IE compatibility, etc)
Generated (or not) HTML validity (tag validation, deprecation, IE compatibility, etc)
Javascript (errors, code quality and standards, etc)
Input Validation (fields testing - e.g. emails should receive emails, etc)
Language Specific/Framework Errors (please state language/framework below)
Boilerplate/work/time required to ship features
Database Access
Usability & Workflow optimization

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