<i>I always appreciate people giving me advice on my website, even if I don't end up taking it.</i><p>Ok, here is what I would do. Dramatically simplify the whole experience:<p>* The front page says "Make bingo cards on your computer" in large print<p>* The front page has a word list form directly on it. This form can be filled either with one of the predefined wordlists, or manually.<p>* There is a button that says "Make Preview" that generates a PDF with the <i>unprintable</i> flag set. Put a gray "PREVIEW" across the pages if you are worried about nerd sons stripping out the flag.<p>* There is a button that says "Make Printable Cards" that requires payment and generates a real PDF. Along with the payment form, offer or require a sign up so that they can retrieve their saved cards and word lists.<p>Basically eliminate all the stages, even the one that takes you from front page to using the software.