Great stuff.
I had the benefit of growing up in Newton, Ma so I just hopped onto a trolley or a bus from Newton Corner and was in Kenmore Square in about 30 minutes. In those days the Sox were not selling out much. I would pay $1.00 to enter the center field bleachers. After the 3rd inning, the Fenway staff would allow me to pay $.75 to enter the right field grandstands for the remainder of the game. I was allowed to sit anywhere in the park as long as the actual ticket holder did not show up.
Mostly I tried to hang around the visitors bullpen before and just after the game started. I used to smoke cigars with the O's 20 game winners. This, when I was 14 or so.
I mowed lawns and did odd jobs all summer long so I could attend as many games as possible. I usually took in about 40 or so each season.