Sometimes it's OK for your opponent to know exactly what you're gonna do. Rafael Nadal's strategy was often pretty simple, he'd just keep hitting his lefty forehand crosscourt at a righty's backhand because there was nothing they could do about it.
If you end up in a similar situation, where you're got a strength matched up crosscourt with your opponent's weakness, don't get fancy. Just keep hammering away crosscourt.
