Sign-up for the $10 Betty Crocker Coupon book by mail. Just enter your email address to check your eligibility and then sign-up for one new enewsletter. Thanks goes to Angie who emailed me about this offer. I didn’t get an email from Betty Crocker about it, but sure enough when I entered my email address it said I was eligible to get it! If you don’t like the enewsletter, it’s easy to unsubscribe at any time. You should receive your coupon book in 6 to 8 weeks.