You can keep your research in separate documents from the manuscript, and you have a choice of views — including a full screen view to help you stay away from internet temptation. (authorunlimited.com)
I'd do the cover letter and resume as separate documents, although some people put them all in one PDF. (careerdigital.com)
In fact, they are so big that you thought it would be smart to divide the book into separate documents for parts or chapters. (bookdesignmadesimple.com)