More Frequency

I think one of the best ways to force an adaptation in the body is to use higher frequency. 

Want to get better at running long distances? Run a mile every day.

Want to get your legs stronger? Squat every day.

Want your chest to get bigger? Do push-ups every day.

The only way your body will change (whether it be performance-based or aesthetic-based) is to do enough work to elicit the necessary training response. You might as well be accumulating work as often as you can.

If the typical recommendation to never train a muscle two days in a row comes to mind, know that your body is highly resilient. It will figure out how to function under whatever environment you put it into.

More isn't always better, but sometimes more is better!