This handy tiny planner comes with everything I need and with nothing I do not. I work in a very international environment that includes dealing with travel, timezones and international holidays. The planner includes essential information for this. Daily page is pretty much open (with small hour remarks on the side that can be easily ignored), lined, and contains the date on the top with workweek on the bottom. It also includes on the top country codes of countries that have a holiday that specific day.
Of course I can not say anything yet about durability...