All of a sudden no power

Hi, I hope someone can help. I parked my car for, and left for about an hour, came back and had no power to anything, no door, ping no lights on dash etc.. I wiggled the shifter, and wiggled the key and suddenly everything powered up and the car started. Got it home, then same thing except, no power at all. So, i thought i would try and start it by touching the solenoid with a screw driver, with the ignition in on position, i walked away and it powered up! Went to start it and nothing again. I am feeling like it might be the ignition switch?