A legal way of beating the system (before the fare hikes) was to buy a $6.75 ticket from EWR to NWK and another $2.50 ticket from NWK to NYP. That came to $9.25 as opposed to the $11.25 for buying a single ticket EWR to NYP. I haven't seen the new fares yet, but I'll be back up there next week and see if this loophole still works.