Correct the following run-on sentences and/or comma splices.....
1. My part-time job is excellent, it pays well, provides good experience, and offers a real challenge.
English - Writeacher, Monday, December 6, 2010 at 6:19am
There are two commas in that. Which one needs to remain a comma, and which one needs to be a period (followed by a capital letter on the next word)?