I hear those electric fence things are good..but if you think about it, it keeps your dog in, but doesn't keep others out..I don't know if thats a problem or not, I guess if shes tired it wouldn't but anyway..I doubt I'd use it myself..too paranoid, but I'm weird lol..

I remember when I was a kid, I went to see my babysiters dogs..she had 2 GSD and she kept them in dog runs..she had cement for the ground and dog houses at the back for them if it rained..it worked really well for her

We just fenced in our yard here. With normal fencing. It's impossible to have 2 dogs on chains lol