This might be a less-known fact, but you can download specialty paper for graphs, handwriting practice, letters and more right from Microsoft Word and print them out, or type out documents on them.In Word 2010, click File in the top-left corner, then select New from the left. Scroll all the way down in the templates, and click 'Stationery and specialty paper'. You'll get various templates for download from Microsoft.
For Word 2007 users, it should be in the templates, wherever they are. But here's a web link, which has templates for Word 2003 and 2010 users as well. Look on the left pane to find other categories.