Is there a limit to the number of times Automatic Visa Revalidation can be used?

[kartoon]

Hello - 
 

I recently entered the US from Canada using automatic visa Revalidation because my H1B is expired. I plan to visit Canada again for a period of two weeks later this month, and plan to re-enter using AVR again. Is there a limit to the number of times AVR can be used? Or can I use it as long as the requirements for AVR are satisfied?

[JoeF]

No limit.