the problem is, when I put my key in nothing happens. The car wont start?

i have a 2009 dodge charger, the problem is, when i put my key in nothing happens. the car wont start. the instrument panel don't work either. i get nothing. but i can lock, and unlock the doors, and even pop the trunk from the key. I don't think its a fuse, last night I got stuck at the store. I didn't know what to do so I just turned the key on and off, over and over again and after about 50 flips of the switch, it started. When I got home it wouldn't start. But i'm having all fuses checked now.