Time management has long been my obsession. It’s really a euphemism for self-management and the end-all and be-all of productivity. (The Entrepreneurial Operating System [EOS] is, at its essence, a self-management program for companies.) One major time management tactic is time blocking.

Recently, I was reminded of this when reading Gary Keller’s “everywhere bestseller” titled The ONE Thing. Keller is the entrepreneur behind the meteoric rise of the Keller Williams real estate empire, and in his blockbuster book he shares his time management philosophy.