Use your imagination and complexity (?) and dive into the world of complex numbers. Add, subtract, multiply, & divide complex numbers. Plot them on the complex plane and convert between rectangular and polar forms.
Learn how to represent complex numbers in a different way. Unlike rectangular form, which emphasizes the real and imaginary parts, polar form emphasizes the absolute value ("modulus") and the angle ("argument").
This tutorial goes through a fancy problem from the IIT JEE exam in India (competitive exam for getting into their top engineering schools). Whether or not you live in India, this is a good example to test whether you are a complex number rock star.