Thanks for the great tip, abijah!
Since the whole connecting and disconnecting of the USB cable is damn nasty (for example when programming) if you have to do it several times in a row, the solution you've pointed out is great. Will use this program a lot now.
Yes, Bluetooth drains the battery more than USB, but using the wifi option of the device consumes even more power, if we can trust this chart:
http://www.diffen.com/difference/Bluetooth_vs_Wifi
BTW, you don't have to rate the program, you can just click on the download button on the left to the rating button.