How to get ripped?

I do want to take my time seeing as most people tell me i can overdo it big time. i have been doing 100 push ups every night for the past week and they seem to not be making me sore anymore. does this mean their not working anymore? My main concern is what exercises would greatly benefit me in the long run?

NOTE I have no access to weights whats so ever.
So lets just say excersises i can do with my own body and not using any objects.