I use the Master of your craft candle when I feel blocked and uninspired to complete work related tasks, to learn a new skill and during an interview.
Today, I just couldn't concentrate on the work I was doing. I spent the whole day watching my computer screen, then almost at the end of the work day. I blew it out and thought I wasn't going to do anything, but before I knew it, I was sprinting through work I was previously putting off. I completed more work in the last 30 minutes then I did for the whole day.
The work did not feel boring or like a chore.
Thanks to the Demon associated with Master of your Craft. Thanks to 7th Witch House also.