1. Pens – Pens at the number one spot? Yes! This can be the cheapest gift you will ever buy your work colleague at Christmas time! Everyone needs pens whether you’re in the office or at home. They can go in a handbag if the recipient is female, or even be kept in a car. They can be funny, colourful, fancy, or cheap. You could even buy a nice pad of paper or memo pad to match! It’s number one for our Top 5 Secret Santa Gifts because it’s cheap, easy and will be used!