Follow up:
For anyone that likes the simplicity of using Simple Irrigation and wants to extend it's scheduling capability to cover the simple and straight forward "every other day" case.
Just create a Virtual Switch like say, "vNotTodayZurg", controlled by this driver popped out of the software microwave today by @thebearmay (thank you).
Then set up your schedule in Simple Irrigation to water every day and to check the state of "vNotTodayZurg" to allow or not allow that day's watering based on the even/odd skip-a-day cycle you are desire.
P.S. Bryan I may eventually get around to setting up and using EE. This just nipped this in the bud in an eyeblink without having the concern of me reconstituting/messing up currently foolproof irrigation w/ your SI at a seasonal juncture I can't afford failure.
