Very nice idea, Cathy!
You may call your service:”SEO consultation” or “Ask me how to do it”:hehe:
And for example, $$$ per hour and you are ready to help them during an hour, or $$$ per month and you are always ready to help them during the whole month.
I also tried to help some of webmasters who asked me and I made contracts with them, they paid me for the first two weeks and if they wanted to continue they paid again for the next two weeks.