I’ve spent a lot of time this last year contemplating what Seth Godin writes of here. 
Mr. Godin has a phenomenal ability to capture ideas and relay them in short, hard hitting concepts.
His blog post on conservation vs. concentration of effort speaks directly to me. It’s critical as a 21st century business owners, we ask ourselves these questions:
Are our actions adding value or are we spending effort for diminishing returns?
How can we know? Are you tracking your marketing efforts? Do you know what’s working or not?