To fill out a app you must go online at Petsmart.com we do not have any paper apps at all!
All apps are gone through on an as needed basis. Check the hiring board in the front of the store and make sure you are applying for a position they are hiring for at that particular store. If they are not hiring for a cashier at the store and that is the position you apply for probably no one will view your resume.
Also, if you have very open availability you are more likely to get called.
We all love animals, but retail requires crazy hours and hard work. Don't expect love for animals to be a qualifier in any way. 99.9% of people who apply to PetSmart love animals.