(A good way of making lots of caps)

Become a pornstar at Megaton. To become a pornstar you must go to Moriarty's Saloon and ask that one seductive girl constantly to get a bed. Then after you ask her about 25 times she'll tell you something like: "Do you want me to get in the bed with you Well...You can be a pornstar." Tell her "Hell yes!" and then she'll take you down to a hidden stair. Go down there and you'll go down to her room where you can have sex. She also has a friend that will tape it and you can sell the video to anyone for 50 caps. It's a great way to get lots of caps.