WinSuperMaximize strips the title bar from app windows
Launch the app and it minimizes to your system tray. To "super maximize," just tap win+F11 - a second press will bring the bar back. You can also right-click the tray icon to activate the effect, though sometimes it targets a window other than the currently active one.
It does make moving windows a little tricky (installing AltDrag is a good way to solve that problem), and multiple monitors are not currently supported. Super maximizing will always send the app to your primary display.
Despite those shortcomings, it's still a decent way to save some much-needed screen real estate on cramped netbook displays.