I always signal. And unlike most people, I actually put on my signal before I start moving over.
I have heard that in the Baltimore/DC area, though, you can't put on your signal because everyone will cut you off intentionally if you do. Anyone care to confirm?
I live in the nova/dc area and even on 395 or the beltway, I find that if you use your blinker and be a reasonable driver, people will let you over. Besides, since everyone is only going like 5mph, it is not a big deal to let someone merge in front of you haha.
The thing that upsets me are the people merge at the last possible, second, causing everyone in the non-exiting lanes to have to slam on their brakes behind them.
