I created a PDF of spacing lines for calligraphers. (Okay, I really created them for myself! I'm posting them online to share with you.) I've created two versions of each guide page: one with thick lines to make them easier to see under your paper, and a thin-line version for writing on directly. Download it from your desktop, browse through it, and print out what you need. The link is:

What do you get in the Spacing Guides PDF? in addition to normal horizontal guide lines with slanted lines, you'll get the following:

The above lines let you set your work on an arc or a circle.

Break free of the horizontal and go wavy as grain riding a breeze!

You may already be using lined paper. So just slip this underneath to get the slanted lines.