Rack Harmonica and Guitar Anyone?

So my instrument-ADD has kept me away from the guitar for a while as I work on my harmonica chops. I think I'm getting alright:
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and I figured its about time I synthesize the two. Any of you tried it? It really isn't coming easily to me so I'm wondering about exercizes to coordinate the two. Any ideas?

It came easy with me. Start out by trying simple 3 chord songs. Playing acoustic in clubs not a problem playing both, but playing in a band setting which is louder I need to cup my hands to get the volume loud enough to be heard.