Filofax-like diary/appointment system by Alain Paul Martin, with spaces for daily, weekly, monthly, and yearly objectives, as well as appointment-keeping in 15 minute increments. A full H.P. contains not only a diary, but an address book, small atlas, and the usual miscellany of reference material found in dead-tree documents of this type. Since this particular product is closest to my own manner of working, I try, as often as I can, to buy one every year (they're expensive, however, costing $35+ USD).

All of this would be less than interesting, if it weren't for the meglomaniacal ad copy that usually accompanies it: by merely buying and using his products, everyone from schoolkids to governments (governments?) can become more proactive and successful. Imagine! A world of Harvard Planner!