Have leveling up been hard for you in DC Universe Online ? If you are in hurry, try the following cheat to make it fast.
In level 17 mission (Trigon’s Blood). There are several rooms in the hospital before coming to the Boss. There you will find a room with lot of wheel chairs lying around. Destroy one wheelchair and you will earn 15 XP points. A couple of seconds later another chair will spawn there and that goes on giving you a chance for earning endless XP.