GNOME Terminal could really use an auto-copy tool, like in PuTTY - when user selects something on the screen, selected thing is automatically copied to the clipboard. It is way more convenient to double-click on something and then right-click to paste it, instead of selecting, right clicking, selecting copy and then right-clicking.

I realize that it may be inconvenient for some users, but it is inconvenient for me (and I believe for some other users too) to right-click to copy, that's why it should be implemented as an option (like Edit->Automatically copy selected text).