You might think you're being polite by offering to buy other people drinks, but you probably can't afford to be so generous! "It can be tempting when at university to buy your friends a drink, but you're at a stage where finances are tight and you'll regret it when you look at your bank balance in the morning," he says. "It can be awkward if someone offers to buy you a drink and you can't return the favour, so politely say you're ok when they offer so you don't feel required to buy others drinks. Focus on your own budget, not everyone will be thinking wisely about their finances, but that shouldn't affect your expenditure." The same goes for picking up things for people at the supermarket, paying for other peoples' club entries, and covering the cost of a taxi.