If you are playing DG, and open a new window showing the "give" screen, you can transfer items and money to anyone who's in the list shown on that page, regardless of where you are. For example:
Aaronar and I are standing in the same room. I open a new "give" screen. I move to another area (using the original screen), then select the already opened screen again, select Aaronar from the list (the list hasn't been updated to the new room yet), select an item, and click transfer. The items is transferred to the room Aaronar is standing, and he recieves it without any problems.
By opening a lot of windows it's possible to do this many times