Simple tasks such as making a sign for your yard sale or a family newsletter can really be fun to create with a template. You will even find that you will be helped with printing. When you discover how much you can create when you use a Word template you might even wonder how you got along without using them before.
Then, deliver your polished proposal. Save it in a PDF file or print it out, or both. The best delivery method for you depends on your relationship with the party who will receive your proposal. It's common to attach PDF files to email these days, but for your situation, it might be most impressive to hand_deliver a nicely printed and signed proposal.