Here is a great article with advice from The Knot on how to write your own vows.
12 Tips to Writing Your Own Wedding Vows
Penning your own wedding vows is no easy task — it’s like writing poetry, public speaking and having the deepest conversation of your life all at once. Putting your promises on paper is an emotional, eye-opening and often extremely memorable experience. Up for the challenge? Here’s the homework you need to do (and the questions you should ask) to make your vows perfect. Click on the link to read more…