So for quite a long time now, I was having all kinds of trouble keeping my charger plugged into my phone, no matter what, it wouldn't stay plugged in. At first, I figured it was a problem with the charger since they're always so cheaply made, so I tried other chargers, and come to find they weren't staying plugged in either - I figured then that, somehow, the probably must be with the phone, but I couldn't out what that could be.
Finally, it donned on me today, so I took a sewing pin, and began digging out bunches and bunches of pocket lint that was clogging the port . . . now my charger is staying plugged in again!