Molly and Daisy are indoor/outdoor dogs.
They have doghouses in our backyard patio with nice, big beds inside of them for when we're not here (school, work, etc). Our patio is pretty large, so when they do have to spend part of the day outside, they're protected from the cold weather, wind, rain, etc.

Here's a picture of it:


They also have indoor beds, which they usually sleep on at night. They both love to be outside, but of course, prefer to be inside with us, where they are for a huge majority of the time.

Our cats are also indoor only, as well as our cockatiels and our hamster. Our six desert tortoises are kept outside. When they were smaller, they had an area in the back of the yard which was covered, so birds and other animals that might be considered a threat couldn't get to them. Now since they've gotten bigger, my dad built a "playhouse" kind of room for them which is out in the backyard, attached to the garage. They go in there when it's time for them to hibernate. Otherwise, they usually have "free roam" of the backyard. (Don't worry, the dogs don't bother them, and vice versa. )

I hate to see dogs and cats left outside 24/7. The family next to us has two Chihuahuas which are almost ALWAYS left outside. They used to have a Dalmation, which was tied to a tree 24/7 a few years ago. I don't know what happened to her.

On the other side of us, there's a family who has a Chow, which I've rarely seen welcomed inside as well.

I'll never understand why people get a dog or a cat, and leave them outside in the yard 24/7, with no attention. It's just not right.