How to clean out the charging port on your phone

I had a problem with my car charger not staying in my phone.  I had actually went and bought a new car charger thinking there was something wrong with my charger.  The new charger still did not want to stay in my phone.  I took a plastic dental pic (that you can get with dental floss on them) and used the sharp pointed tip to slide under the charging port and cleaned out pocket lint.  You could not see the pocket lint in the charging port, but this fixed the charger not wanting to stay plugged into my phone.