SImple tutorial for creating plugin admin area?

I’ve read whats in the codex, I can make an options page, now I just need help actually making the options. Is there somewhere out there that has a nice simple tutorial for using add_option and get_option? Alternatively, is there a dirt simple plugin that I can dissect to learn about how these hooks are used?

I would just like to save user input via text fields to the DB for later retrieval / processing. Thanks for any help