You can adjust the letter spacing to get rid of widows and orphans within the text editor.
To do so, place your cursor at the end of the copy in question and press CTRL, ALT, and either the left or right arrow keys depending on whether you want to add or decrease spacing. Left decreases, right increases.
To go back to standard spacing, press CTRL, ALT, and 0 keys.
Mac users press Control, Option, and 0 keys.