So I'm going to a meeting in a few days, there is a very high change that this client would like to sign up for my service which is displaying there ads on the site for 2 weeks for $300 + they will get a blog post about there service, etc. So I'm wondering.. how do I put it all into like... Umm... Like when they pay me the $300? Where is the reassurance that I won't fuck them over? (excluding physical contracts because that is to much work, and our company is not really registered and all that, but its legal and very public and out there in the open with our faces on the site, etc). Like... I just don't want the client to say, "So I'm giving you $300 and in return I have your word? Thats all..."?