Cleaning up the room was surprisingly fun. I wish there were more rooms so I could buy more upgrades.
I tried again. But when the room was cleaned there wasn't any message and I couldn't go to the other room. The trash bags don't seem to work. Buying them doesn't refresh the money amount. And throwing them doesn't do anything too. I assumed that would empty my capacity and I can pick them up later. It would be nice to see the amount of money you have in the store.
Edit: I restarted the game. This time the door opened. There must have been some glitched trash before. The game is still fun but the backpack doesn't do anything for me too except some tipping bottles from time to time. I even upgraded power and radius. Cleaning the second room let's you fall in the courtyard. :-)