Yes, In-N-Out Burger is the best I've ever had. I live over 2000 miles from the closest one so even on a good year, I get two or three. One time, on the way to McCarran after a stay at Paris on the strip, I had the taxi take me through the drive-through at the one off of I-15 on Industrial (Dean Martin) west of NYNY.
Recently, a Five Guys has opened up within a 10 minute drive. It is really good and gets me through any In-N-Out craving. That being said, there is nothing like a Double-Double with grilled onion accompanied by well done fries. I'm already looking forward to my next trip to the left coast in January. I've never been to the LAX location so I'm going to do my best to get to that one.
Slightly OT, is there any way to get to the Five Guys in DCA if you have a DL boarding pass?