Any number of old sayings might apply to what happened Monday in the Alexandria section of Fairfax County: Practice makes perfect. Stick to what you know. And, of course, banks are where the money is.

All are suggested by the FBI’s report that the man who robbed the TD Bank in the 6600 block of Richmond Highway on Monday is believed to be the same man who robbed the same branch four times before.

The procedure has been the same in all the robberies, which began in March 2010, the FBI said.

The robber demands money and brings his own bag. Three times he implied that he had a weapon. After he got the money, the man fled on foot, apparently turning right on each occasion.

In photos released by the FBI, the man wore a hat and glasses each time. Twice it was a baseball-style hat and twice a construction worker’s hard hat.

The robber has been described as black, in his 30s, 5 feet 9 inches to 6 feet tall, with a muscular build, the FBI said.