Hello cat people I have a quick question.....for the past couple of years my house cats have been on Vectra ( for fleas) it works very good BUT it has gone up in price and is expensive for more than one cat. Does anyone know of something else I can use that is just as good ( one of my cats is allergic to fleas and if she gets them .... Ouch) but may be less expensive? The vet said this is all she recommends ...... But a person still needs to keep their finances in tack....