Long-term couples often have a good idea of what the other person is thinking about most of the time. This extends to presents as well, which can make keeping things a surprise slightly tricky. There are always solutions if you try hard enough, though.
This husband has found a foolproof way of stopping his wife from finding out what he has bought her for a present. He drills holes into pieces of wood and hides the present inside them. It works, but she looks as though she might be a little done with all the subterfuge.