What kind of regimen do you have your indoor kitties on? The vet recommended I used Revolution every 30 days for Lilly, and she has had her initial dose when she was 8 weeks old. It has been another 4 weeks since then and I'm wondering if she should be getting another dose? I have never seen as much as 1 flea on the girl since she was a baby. I know some people on here have said they do not apply Revolution every 30 days but rather every couple months or so. What do you all think is best?