Many of us have switched to digital calendars for obvious benefits, but if you prefer using paper, a WeekDate planner is a nice alternative. These clever products save time by eliminating the need to write the same events again and again.
Available in a weekly format and 12-month calendar format, as well as whiteboard and other variations, the WeekDate provides one dedicated area for monthly events and one for weekly events that never change. So, for example, if you have a meeting every first Monday of the month, you fill that in at the top in the appropriate box, without having to do that for each individual date. If you have a weekly gym class at 8pm every Thursday, stick that on the bottom. Daily, less regular events go on the typical calendar sections.
The system takes a bit of geting used to, but once you do, you'll realise it's pretty genius. The planners are also very nicely colour-coded. At $US36.99, they're not exactly cheap, but may be worth the investment in terms of time saved (and can be good gifts for organisation and efficiency freaks).
You can see how it works more in this video: