People's dogs might be dirty and not groomed well. It might be because the owners don't have enough time to do it, or they might need help. Well, you can earn alot of by that probably... Well, I hope it works.
I definitely think this will work - and what a great job for anyone loves dogs. The same idea could work for other pets as well. Or, you can also combine the grooming with dog walking - especially if there are people in the neighborhood who can't get out in heat or cold or who are working. For even more ideas on how kids can make money, be sure to grab your copy of the Kids' Business Ideas book.