Portable Narration

I’m wading into the Articulate Storyline authoring pool.  I’ve developed a few small modules and I learn something new every day!

I’d like some tips on recording consistent audio narration.  I have an awesome USB Blue Yeti microphone.  When I narrate a course, I need to pack up my Yeti, laptop, notes and water bottle and schlep to an empty file room on the other side of the building – my cubicle is too open and public for recording. 

There are a lot of variables for recording, including placing the mike in a consistent location so that my voice sounds the same when I have to re-record. How do you create a portable recording environment – kind of like a Soundboard To Go?  Thanks in advance for your advice!