When talking with a remote clients/offices, we've found http://appear.in/ http://appear.in/ to be great. No hassle with adding each other on Skype/Google, just

When talking with a remote clients/offices, we've found http://appear.in/ http://appear.in/ to be great. No hassle with adding each other on Skype/Google, just send a link. Even supports screen sharing when demoing. Not saying it will be a silver bullet for your listed issues, though.