One of the advantages of deliberately using styles in Word is that you can set up a style, for a body text paragraph for example, so that it works in your 8x10 layout, then when you do the page layout switch to 5x8 you can "select all instances" of that style and change them all in one swell foop to a body text paragraph format that fits the new page size.

Even if you didn't deliberately set up styles, you may be able to use what's there. If you change something like point size or indents, Word 2000 and later (and possibly earlier versions) usually will "create" a new still that will look something like "normal + 11 pt Bold Italic Header -5" etc, so that you can select all the paragraphs that have the same style and change them all at the same time to a new one that you defined on purpose.

In Word, on the top toolbar to the left of the window where you set a paragraph style (it will probably say "Normal") there should be a pair of interlocking "As" like "AA." Click there to open the "Styles and Formatting" toolbar on the right side of the screen. At the bottom, there's a roller where you can select "show styles in use." With it selected, hover over a style and open the roller by the style name, and you should find the "select all." Once selected, clicking another paragraph style changes them all.

The "Styles and Formatting" bar on the right is not to be mistaken for the "Style Bar" on the left that shows in Normal View. The one on the left is only a reference to tell you what style is used. The one that opens on the right is where you get control.

You may also want to look at Tools|Templates and Add-Ins, click the "Organizer" and you can copy paragraph styles from any template on your machine into the template for the document you have open. (If you didn't create a separate template, the document itself is its own template of course.)

But you already know all this and just got in a hurry. We'll pretend I'm talking to you and maybe we'll make someone else curious.

John