Create a Check Register Reflection

It's helpful to keep track of your balance on a spreadsheet because it does most of the calculations for you. You are more likely to make a mistake and throw off your balance more than a computer.
I can't think of a very bad disadvantage other than other may be able to see the file on a computer. But its smart to keep track of your balance just in case you ever suspect that you are missing any money. You can always go back and check each entry.

Payroll Reflection

If Diana worked 5 extra hours at 1 1/2 times her rate of pay, it would increase her net pay by $43.31. Her net pay would increase to $254.31

College Budget Reflextion

If the budget is short, I would minimize unnecessary spending and if that doesn't help much then possibly find another college that would fit the budget.