I wrote a Visual Studio Add in that makes it possible to generate inline GUID's with Keyboard Shortcuts without opening the GUID tool true: Tools > Create GUID. There are tons of examples on how to create one yourself, but there was no downloadable solution. So I've added this project to save you some time.
This inline generator is very handy for SharePoint Development or solutions where developers have to generate quite allot of GUID’s throughout our solutions.
You can simply install this VS 2012 addin by downloading true this link: GuidGenerator.zip
After installation, you can setup a Shortcut true: Tools > Options > Environment > Keyboard.
Lookup GuidGen and set the Shortcut. I'd used Ctrl + N, Ctrl + G
This is one of those little things that seems so simple but really can make you development easier and quicker a few clicks at a time...