Here's a few I like all available through the linked Package Control
- AdvancedNewFile: Keyboard shortcut, press it type in name of the new file and voila, no mouse needed!
- BracketHighlighter, because sometimes you need to see the opposite tag
- Color Highlighter: Work with CSS a lot? see the color right in your editor
- Emmet: HTML swiss army knife to quickly create html tags
- Git, GitGutter (and maybe GitStatusBar): git
- MultiEditUtils: ST3 already has multi-cursor edit, with MultiEditUtils everything's on steroids
- Origami: Everything you need to create, move, destroy new split panes
Some of them take a bit …See more