If adjusting line spacing in MS Word, go to the Format-Paragraph box. For a “quick squeeze” that most people wouldn’t notice, instead of the default 12 point/single space, set it for 11 point/ 12 point space. This shrinks the font as well as the line spacing, but very little. By setting the line space 1 point higher than the font, it keeps the white separation space that makes it easier to read, but not as much as single space does.