All developers creating timerjobs must have missed to option to execute a timer job or to reschedule it.
I guess everyone has developed a little console application, stsadm extension or even a powershell script they used to kick off a timerjob immediatly. Well, maybe the lazy (=smart) ones amongst us just downloaded something from codeplex to solve the lack of this functionality in SharePoint.

The good news is that SharePoint 2010 now has these options in the Central Adminstration by default.