Is there any easiest way to create a persistent counter?

[DaveCHChan]

 This is to increment by 1 whenever a visitor visits a specific URL once.

[Paul]

@DaveCHChan in Audience Stream you can use a Tally. Good luck. 

[BrianGreig]

Have you tried using cookies to persist values?

[kathleen_jo]

Great idea @BrianGreig!

[DaveCHChan]

Thx All!

Yes, I can start it off with persist data value but don't know how to retrieve it and increment it by 1 then put it back to cookie. :)