Hi Pussnboots, I was just wondering, is your cat really at risk of catching fleas if you don't give her any flea treatments at all? does she mix with other animals that are likely to have fleas? or do you give her frontline purely as a precaution on the off chance that she may come across a flea? Only I have 12 cats in all and as it would be very expensive for me to frontline or stronghold them all every 5 weeks (impossible in fact) I just check them all with a flea comb every few weeks (or if I see a cat scratch),and if I come across even one flea then I treat all of them (and spray the house yearly as a matter of course). But, there have been spells of up to 2 years when there hasn't been any problems with fleas at all (wish I could say the same for the present as we have just had a problem after bringing in five 3 days old orphan kittens who were running with fleas) . These chemicals are pretty heavy duty and regardless of what the manufacturers tell you about needing to do it every 4or5 weeks (which they would say cos they want you to buy it that often) I don't think it really is necessary. I know a few people who just have the one cat and have never used flea treatments nor have their cats ever had fleas (touch wood! don't want to tempt fate). Lastly, there are people who use homeopathic treatments for flea control who say it works wonderfully well so If you do 'need' to take precautions,that also could be worth a try. Im sure you could get info about it on the net. Glad to hear that your 18 yr old is doing well now.