We have a few solutions for managing cable messes that we've tested and work well. 

Power Splitters

The idea with the 1-to-4 splitter is to put a surge protector at your wall outlet and then run a single, nice looking cord into the desk. It's also a nice low-cost way to clean up your cord mess and saves your desk space from a bulky surge protector.

Power Extension Cord

Data Cables