F.FOOD SHOPPING is important to budget for especially when entertaining. Include the drink and sweets you buy and be realistic!
G.GRANTS are available for some students coming from households with below average income and for some students with disabilities. If in doubt - check.
O.OVERDRAFTS are useful as long as you have agreed with your bank the amount you are allowed to borrow. Whatever you do don't go overdrawn without permission.
P.PHONES are a great way of keeping in touch and if you are not careful a great way of building up debt. Make sure your mobile has the right tariff for you.
Q.QUESTION YOUR SPENDING continuously as there will always be conflicts between needs and wants.
V.VIDEOs and DVDs are great to have but can add up quickly so like all leisure items try and prioritize and have an upper limit on your spending in this area.
W.WATCH the pennies, as it is nearly always the little items that when added together bust any budget.