Buy Ketchup in May and Fly at Noon: A Guide to the Best Time to Buy This, Do That, and Go There Book

A brilliant book as concept, but very difficult to make the book so that it would appeal to 'most readers' - everyone has different needs and interests. End result being that everyone will probably find some of the tips 'doh' or just banal. Like tell a 85 year old reader that the best time to have children for a woman is early in her career... doh? Or buy veggies and fruit when they're in season... well, doh.
A good variety of topics - now if only I remembered the tips when they are needed in the real life without keeping the book around.
Some of the tips I've been using for ages, like buying flight tickets 8-6 weeks before flying, on a Tuesday. Or shopping on a Wednesday if I want to utilize the double weekly deals from a grocery. Or studying when it seems to best work for my brain's circadian rhythms.

Some of the tips are also a bit too... umm, life? When to have kids (young), when to have sex to have kids (TMI), when to potty-train your human offspring (when they're 18-30 months old. But wait... the parents of children adopted from China get a crisis when their one year old new child doesn't need diapers. So a Western child needs more time to master his.. stuff?).
Some tips I'll never us (in addition to those related to children). When to buy ketchup? I make my own. No more HFCS... I hope I'll never need to own a lawnmower, winter clothing, or to look at a tips book when to marry. I will also not be buying a new pillow every two years just because a book tells me I should, mine is comfortable enough, thank you.

A lot of the tips are aimed for you getting a better deal in something. But so much more can be saved in how and where you shop. If instead of waiting for a Saturday evening when the Sunday deals supposedly kick in the department stores, and then be in a shopping rush with a huge crowd of women, shop at the outlets, or the clearance racks, or figure where your closest charity and thrift stores with decent selection are. (and the least painful time to shop in all of those: when they open on Sunday or Saturday). Choose the store brand, learn to make your own, figure what and when works for you (and how to do without). But still a neat concept, and it works for bathroom/coffee table/travel reads.