I'm a fish but i think just wait for a good hand (playing fit or fold) and valuetown him, should be easy if he is really bad and dont adapt to our obvious strategy.A calldown to catch a bluff is not necessary when you get tons of value with made hands.And you have to think about what you're doing, for example a cbet lives from fold equity (and to balance our made hands) and when you dont need to balance your cbet range and there is not enough fold equity if you've missed, the cbet makes no sense. same is true for other standard moves: know why you're doing it and adapt to your opponent.  

Definitely look to utilize a check raise for fold equity on boards he likely misses (less draws present in particular if his flop range is truly any two cards) since he's betting at any flop.  If he continues to always call, you have yourself an extreme call station opponent, and if firing 2 or 3 bets as a bluff presents no further fold equity then you just turn yourself into a wide and large size value bettor (firing 3 strong barrels with a mid pair, firing at least two barrels with a weak pair, etc.).That's pretty rare though, there usually is fold equity in some situations, so look for situations where your opponent is not likely to have a hand, look for situations where they put a lot of chips into the pot without a hand, and attack them there.Preflop, raise value hands if he's calling every limp raise, A8 is fine to raise, JT is fine to raise, standard premium hands, standard broadway hands, etc. are all good for value here.  You still often want to avoid raising A2 or low PP type hands, they just flop terribly (and in the weak Ax case your opponent probably puts you on Ax too often when you make a hand so there's some value loss there).

 Hello there,Your sample hand reveals a lot wrong about your gameplan against this type of opponent (A8o vs. button limp)Preflop - With A8, I don't know if I would happily raise his limp, especially if he is prone to making plays postflop.  A8 is a strong preflop hand, but does not connect too well with flops too often.  I am especially weary of rasing this type of hand out of position, where we don't have nearly as much information as we would on the button.  I would be happy checking this back, and instead building a pot when I hit an Ace or Eight. Postflop - When you miss the flop, why are you trying to bluff a bluffer?  You are lighting money on fire if you are taking these cbet-fold lines.  Just check back the flop unless you hit an Ace or an Eight, and depending on board textures, you may want to call a bet of his if you think your ace is good. It seems that you are trying to make way too many aggressive plays against an opponent who will call and bluff you regardless of whether or not you have a strong hand or not!  I would reccomend watching some of Cog Dissonance's videos, and to take a similar approach to these "calling-station" type opponents as he does. A typical gameplan:Preflop - You'll want to limp a majority of hands (depending on how often he attacks your limps), and raise preflop on your stronger hands that connect well postflop.  Hands like high pocket-pairs (77+) and broadway cards (JTo, KQo, etc.) are great hands to raise preflop, because it seems your opponent will call you regardless, and you have a high chance to connect postflop.  This way, you are preparing to build a big pot on your better hands, while keeping the pot small on marginal holdings.Postflop - I would bring your c-bet % waaaaay down.  It seems he will be calling you regardless of his holdings, so just don't c-bet if you don't connect.  Since you will be limping a wide range preflop, feel free to limp-stab at dry flops, which will not commit many chips and will perhaps fold out some of his range.  While you won't be c-betting on air often, you will be raising for value with a much wider range.  You will be able to  get multiple streets of value on non top-pair hands.  Since he attacks aggression a lot, you can play trappy with your medium-strong hands, willing to call some of his counter-aggression with marginal holdings. In summary, you cannot beat loose opponents with aggression.  Try to see many cheap flops, and simply bet bet bet when you hit a hand - a loose opponent will pay you off regardless of your aggression level accross the whole game.