Choosing a gift for your better half is always a daunting experience — especially during the holidays. So before blundering blindly through the mall or clicking buy on literally anything in a panic, allow us to give you a steer on the situation. Whether you're on a budget or a bona fide big spender, we've plucked out the best books, beauty products, jewelry, lifestyle gear and novelty knick-knacks for you to spoil your girlfriend with this year. Take a look…