Cheerios Having a box of Cheerios ($4) on hand is never a bad idea for any dog owner. While some dogs might see them as lower value, they're perfect for keeping around the house to use as a reward for commands your dog has already mastered. Since they're already small, a single Cheerio will make a great treat and encourage your dog to continue displaying good behaviour. Image Source: amazon.com Cheerios $4 from amazon.com Buy Now