Frontline is only available at the county vet where I live, and I know we pay less than $20 for a three month supply for Wallace, Autumn has about half a year of Hartz to use up. We also get our flea shampoo at the vet, I think the brand is Adams. I've heard horror stories about giving over-the-counter dewormer. It's very hard to guage exactly how much to give and can be deadly if you overdose it. I wouldn't do it myself unless I had experience with the different medications and giving my own shots. I'd never use pills for dewormer. Have you tested for heartworms? I wouldn't wear that flea collar if I were you, you'll end up with some sort of infectious ring around your neck. Take a day outside of the home, pets in tow, and flea bomb the house. Spray the yard as well. Then bathe the animals who can be given flea baths before they reenter the home. That should do the trick for most of the fleas.