Yes, that is a good alternative. Mind you, though, I don't see the problem with putting your little stamp on a site in the footer. As you say, regular visitors won't care, but like many businesses, putting a stamp on your work is a way to get known and find more business, and clients are usually fine with that in my experience. I don't mind my car having a logo on it. If someone else likes the car, it's a way for them to identify it. Likewise, those who do want a website will often mention sites they like, and it's fair enough, in my view, for them to be able easily to identify who created it. If a builder does some work for me, I don't mind if he leaves a little sign saying he did the work. I'm happy for him.