Spelling and proofreading. There is nothing worse than spelling and grammatical errors in an offer. Keep in mind that most non-human spell checkers are not foolproof. Do it yourself; don’t rely on autocorrect.
Printed or digital? Generally, clients will be ok with a digital proposal, but it is always good to ask if they would prefer a printed version.
Paper. If the client prefers a printed version, use high-quality paper, and pay attention to the level of your printer cartridges to make sure it looks great.
Create your template. Use a template for all your offers to make the future creation easier. It also helps you stay more organized and to keep your branding consistent.
Follow up with the potential client If you don’t hear from them in a while; write a follow-up email or pick up the phone to ask if they have read over your proposal and let them know you are happy to discuss anything they need.
Be nice and professional, but remember: less is more! With the proposal, your goal is to give important information to the client, not just about selling yourself. Perhaps the client can’t physically see you, but this proposal is key to making a good first impression.