Has anyone purchased the Beth Haworth The ultimate Disney World Savings Guide?

We are planning a Disney vacation for March and was interested in the book if it can save me money. Has anyone ordered it? Is it worth the $20?

Please dont waste your money on stupid guidebooks that say has good tips money saving crap because there is no way to save going to Disney. If you have questions ask on here and they will happy to help you.

You save if you bring your own water bottles and small snacks in with you to the parks. This is your vacation so you do what you want to do and not what some guidebook tells you what to do and what not to do.