Freedom from Technology
My fiance promises this will be used during our honeymoon -
"Freedom is a simple productivity application that locks you away from the internet on Mac or Windows computers for up to eight hours at a time. Freedom frees you from distractions, allowing you time to write, analyze, code, or create. At the end of your offline period, Freedom allows you back on the internet. You can download Freedom immediately for 10 dollars, and a free trial is available."