When I let myself use trainers in a game, I limit myself to the "practical" functions, like watering gardens, mowing grass, ect. And of course, giving myself free money, although I very strictly limit that (otherwise, all the scenarios might as well be Arid Heights). ----------------- RCT hypercoaster crazy!
Since I only use the trainer when it is not for a scenario, I like to use it to bury rides or add a lot of peeps real quick to test the park.