Things is my current task manager of choice. The 1.0 version of Things will be officially released at Macworld Expo next week, but Cultured Code has made the 1.0 Release Candidate available starting today.
You can get Things for 20% off at their online store by using the coupon code “THINGSPRESALE20” at checkout from now through January 15th, 2009.
Note: As of 2:45pm HST it looks like Cultured Code’s servers are getting hammered by the traffic. They have provided this mirror via Twitter for the 1.0 RC: http://gridgets.com/Things.dmg.