Devotees of our recession travel rules know how much we love holding on to our vacation greenbacks with the Entertainment Book (see no. 19). There are 154 editions, including Orlando, Washington DC, Vermont, Denver, Hawaii, San Diego, Atlanta, Las Vegas, Vancouver, and New York City. Each book is jam-packed with freebies, two-for-one admissions, and discounts to exactly the sort of places your family is likely to visit: local restaurants, amusement parks, golf courses, museums, movie cinemas, local theaters, kids’ attractions, zoos, ski resorts, drug stores, and much more.

If you've got a getaway planned for 2009, heads up: The mother of all coupon books is on sale now at a 25% discount, plus you get free shipping. Most Entertainment Book titles normally cost between $25 and $30, which an average family could quite conceivably recoup in just a day. Buy now and those same 2009 titles cost between $18.75 and $22.50.

Tip: They make great Christmas gifts for friends and family with vacations on the horizon.