How to change the default action for when phone is plugged in to a computer?
When plugged into computer: 


Pull down notification bar
Click on the USB connection notification
Choose either MTP (Recommend for daily use) or Camera mode


Done, you device will still charge, and now you are able to tansfer files between devices

Side Note: You are also able to use USB tethering(Under mobile hotspots settings) when connected to share your phone intenet data.