Here are my top 3 video tutorial tools that I use at home and the office:
Accessible via the menu bar (Mac), Monosnap gives you quick and straightforward ability to record video, capture and edit images, and upload to their cloud or save files locally. If you add the webcam, you can customize the size and placement. It is my go to application for quick screencasts.
Installed as a Chrome extension, Screencastify has a great UI and modern design that makes creating quick video tutorials enjoyable. Optimized for exporting videos to Google Drive. Limited options to adjust webcam position.
The desktop application, Intercut, is a new video tutorial software offers higher quality webcam recording (using a mobile device) and automated editing to transition between the webcam and screen views. Optimized for creating longer video tutorials and external sharing to Youtube.