Working out is getting boring?

I love exercise and it's always been fun for me during sports because I'd have a routine and I'd have my teammates along with me. Now that it's summer and I'm on my own it's gotten really difficult to make working out fun, now it's kind of like a drag... go to the gym, do the same thing at the gym and go home. It's so boring! So far i'm doing a good job as far as staying in shape goes, but I fear falling out of shape just because I ran out of ideas. Running outside has also become very boring and I don't really enjoy it anymore. I just don't know what's wrong. Any help?