- Quick hacks: Moya library (https://github.com/Moya/Moya) for categorizing API route, Diff Algorithm for reloading huge UITableView efficiently
- Others: Have a dog and sleep well :)
- Sublime Merge for solving merge conflicts and committing individual lines (I'm for command line when working with Git, but `git add -p` is often frustrating, with Sublime Merge it's very easy once you got used to the tool)
External: Taking breaks (brew coffee, walk around), sleep well.