You can scp from a remote host to the host you're currently logged into (assuming no firewall restrictions). You could even simulate the put command with a suff

You can scp from a remote host to the host you're currently logged into (assuming no firewall restrictions). You could even simulate the put command with a sufficiently clever shell script by using the value of SSH_CLIENT or _CONNECTION. To sweeten the deal, some shells (zsh at least) will even do tab-completion for remote scp paths. Aside from that, I don't think I could function without multiple terminals. I usually have 6-7 open, minimum.