* Github (http://www.github.com) - This and HN/Reddit for fun. I use Github to review my previously comitted code, marking comments in the code of ideas and thoughts so I can correct them when I get home (for profit), and exploring different languages, profiles and projects (for fun).

* Workflowy (http://www.workflowy.com) - Dump all the stuff I might need to remember or note about a project or task here.

* Trello (http://www.trello.com) - Scrum-board for my tasks, planner for the summer vacation, my wedding, etc.

* Diigo (http://www.diigo.com) - To save bookmarks, notes on pages, highlights of stuff I might need to reference, etc

* Toggl (http://www.toggl.com) - To keep track of how many hours I work on each project

EDIT: Typo/format