Crates are great. Your dog needs her own space, just like a kid. And just like a little kid, she's gonna think her own room sucks at first. It's amazing how much a 6 month old puppy in a crate sounds like a 2 year old in their own room for the first time. Maybe she needs an old worn out shirt of yours in there, so she doesn't feel as alone. Or maybe put a favorite toy in the crate. A Lab or Lab mix probably would want a chew toy. Once the dog understands the crate is *their* space, they think it's great. My family's dog would hang out in his crate when he wanted to be left alone for naps, or when the kids were trying to play rougher than he wanted.

It is possible (and for some breeds a really good idea) to train your dog to walk on a lead with you on a bike. A greyhound really needs to go fast, and a lot of times bike training them is the only way you can safely let them go all out the way they need. It does take training, and isn't a good idea for every dog. But for a high energy dog, the longer and faster distances are good.

Some dogs btw are nearly incurable beggars. They tend to be *very* food motivated hungry critters. For that kind of dog, any treats outside of mealtime will reinforce the begging. If everyone in the household sticks to "no treats", you can get such a dog to stop begging. If there's even one soft touch, the dog will hit up anyone with food and beg. If you're having a family meal, the dog will hit people up in dominance order, starting with the least dominant person and moving up the food chain. If they strike out on everyone, they go back around.