I have never used openvpn before and I am a VPN noob in general.

My private network is 192.168.0. I was thinking of using the default
10.0.8 open vpn network.

1. Does that make sense, ie should openvpn be configured as the same
network as my private network?
2. If I go forward with the current configuration,I assume whenever I
am on the road and I happen to be using a network which gives either
ranges, I will be out of luck?
3. I assume I should not use static keys?

Thanks,
Brock