Understand what it is and how it works (in theory). I'm wondering how do I physically utilize those nodes in that picture to my advantage right now?
Is there a LN enabled wallet beyond beta stage? I doubt it.
I think at the moment it's a matter of lobbying for merchant adoption. Exchanges embracing it would be the best thing to happen, but I don't see it happening without strong user pressure - or possibly competition from decentralized exchanges. Just see what it took for Coinbase to upgrade to segwit and batch transactions!