Atom, a lightweight code editor created by GitHub is a powerful tool, but needs the right plugins to really unlock its potential.
Being able to ctrl-click my way through source code was a feature I thought I had lost forever when I left my heavyweight IDE behind, but fortunately not so. js-hyperclick is fantastic for navigating through large codebases. For visual navigation I also find hightlight-line and highlight-selected invaluable for getting my bearings on the screen.
A simple plugin to aide the visual grepping of your folder tree, this plugin replaces Atom's generic file icon with a different icon depending on the file's type.