Infinite Money in Career Mode
Select a team in Career mode. Purchase a player who is listed for loan. Sign the player, then go to "Budget Allocation", and set the "Transfer Funds" to "Wage Budget" ratio 0:100. This makes the money for transfer funds 0%. Go to "Sell Players", and terminate the loan of the player you just signed. You should have more than $2 billion. Go to "Budget Allocation", and change your wages funds percentage as desired (40:60 is recommended).
Easy arena accomplishments
As a player, kick the ball away. Then, switch to the goalkeeper, and run as far away as possible from the goal while the AI controls your player and runs to the ball. Switch back to your Virtual Pro player, and shoot from a distance to get the accomplishment for shooting from a distance of 32 yards. If you juggle the ball and volley, you will also get another accomplishment.
This trick also helps to get other accomplishments. Note: You can also use a second controller to control the goalkeeper to make this easier.