Man is a generalist. No harm in that: he/she is remarkably adept at adapting and to enhance this process has created a batch of tools which allows him/her to perform to the highest levels.
What are the essential Tools of Excellence?
2: The Play-list
Music: the instant mood changer and enhancer. You need to write, to cook, to lift weight, to relax? Music will help.
Start with this one. Beatles, Beach Boys, Bennet, Berigan, Bass and a whole lot more.