Non Houdini Tools
Search everything
Best search tool out there. E.g. look for *.hip files and get response in realtime.
Video Speed Controller
Tutorial too slow? Too fast? Adjust it to the speed you want. Works for Vimeo, gifs and pretty much everything else. Chrome extension that is also available for most other explorers.
Snipping Tool
Want to send a screenshot, or just a part of your screen really quickly to a colleague? Windows ships with the snipping tool. You can select part of your screen and save it to a location or just store it in your clipboard to paste into another program.