Well, that is, I have developed some websites and what I usually do when someone is going to hire me is to show him/her some of my previous and similar jobs I've done in order to make them feeling comfortable.
Today I was talking with a guy and I did what I mentioned before, then he asked me: "How can I know you really did those website", and actually I couldn't give him a nice answer since all I have is from those websites are: pictures, documents and some Skype conversations. Most of the times it is enough.
What do you do to water proof your job?
I researched about this topic and found a guy who write a tag like this:
<meta name="generator" content="Developer Name" />
Is it a good or a bad idea?