Five Guys is the first burger place that I remember popping up, and although their first location opened in Arlington in 1986, it really began to get popular in the early 2000's which is when I began to hear people talking about them. According to their website they have over 1000 locations nationwide.
I usually just get a Little Bacon Cheeseburger with whatever free toppings I am in the mood for that trip. The also carry plain "little" burgers and well as normal size and hot dogs.
I usually love their fries, sadly this trip they were not crispy-soggy :( I would say they are good about 90% of the time. The fries portions are huge so you can share them with a couple of other people.
If you are looking for a decent burger and fries at a reasonable price then I suggest stopping by your local Five Guys. The food is a little greasy, so if you want a slightly healthier option I would recommend Elevation Burger.