Enable cheat mode by typing IAmACheater (case sensitive) at the main menu or while playing. Then use any of the following cheat keys:

M --> Increase Money by $5000
R --> Increase Reputation
SHIFT+R --> Decrease Reputation
U --> Increase Tier to Top Tier
3 --> 1 Young Male
4 --> 1 Young Female
5 --> 1 Middle-Aged Male
6 --> 1 Middle-Aged Female
7 --> 1 Old Male
8 --> 1 Old Female