Minimum viable optimization: "If you only have one day a month to optimize your site, do this!" —
Talia Wolf
http://getuplift.co/minimum-viable-conversion-optimization/
My favorite idea: "More than any other part of the customer journey, I find that the middle, the “evaluation” phase, is the most commonly in need of optimizing; Somewhere between the website and pricing page doing their job to onboarding to becoming a new customer"