Greyhounds don't need much exercise. Another myth about Greyhounds is that, because they're bred to race, they need lots of room to run and constant exercise. At the track, they only race once or twice a week. In homes, however, they romp for short bursts and then turn back into couch potatoes. While a fenced yard is best, a daily walk or two and a chance to run in a fenced yard or field from time to time are sufficient.
Greyhounds are very clean.
The coat of Greyhounds is so light and short that grooming is a breeze. They shed only lightly. Many Greyhounds groom and clean themselves much like cats do. Their coats aren't oily, so they aren't as prone to doggy odor as some breeds are. Retired racers are healthy.