Pet bills start to stack up at the beginning of the week, but you may not have the resources to pay them all at once. Try to work out a payment plan with your vet; he or she should be cooperative. You and your pet both have high-energy days on Wednesday and Thursday, so finding something to do together should be effortless. Be extremely observant of your pet on Friday, Saturday, and Sunday. You should be able to solve a mystery if you watch them very closely.