Some advice for presenting at libraries and schools: Get yourself one of those tall portable banners for your latest book. They are economical at around $165 each, all you have to do is prepare the artwork in PDF format and take it to a printer. Set them up where ever you are giving a talk or launch and make sure that when photographs get taken that you are standing near the banner. Then each time that photo gets shared, you have an in-built free plug for your book.
Also take some merchandise with you. Print some bookmarks, but only print on one side. That is so you can write on the other side. Children like to get your autograph, and should they present you with a scrap piece of paper, you can whip out a bookmark instead and sign that. It will be more durable, and more likely to be kept and treasured that way. Make friends with your local printer. It is possible to get bookmarks printed on paper wastage from big print jobs, thus reducing your costs.
Fridge magnets can be produced cheaply and provide good publicity. It is better to have your book cover on the fridge magnet than a character or scene from your story. Make sure the magnet has your website URL on it.
Having a website is essential. But you must keep it up to date. Don't give someone else complete control of your website. Having the capacity to make Do It Yourself changes to your website is good.
If you would like a copy of the more detailed Conference Notes that are being sent out to CBHunCC members via email, send through your name and email address through the Contact page.