I work with my trainer three days a week and in the past, I've supplemented with basic cardio (elliptical, etc.) on other days. But recently, my trainer sat down with me to devise a "routine" of sorts that I can follow. The routine is very flexible in that it has some sample stuff we currently do and he's put together "pairing" like a push/pull day, etc.

Sample:

Squats - 4x20
Lunges - 4x20

OR

Deadlifts - 3x15
Shoulder press - 3x15

The exact exercise can be switched up (like KB swings in lieu of deadlifts) and he wants me to challenge the weight, so those aren't static.

Anyway, it's more of list but I want to put something into my iPhone so that when I'm at the gym, I can reference what he suggested and then ensure I'm varying the routine up compared to what I do with him or what I did last time. Does anyone have any suggestions? It doesn't need to be too complicated, and eventually, I think I'll want to add the amount of weight/sets/reps and all that fun stuff, but for now, it's just listing and tracking. I don't want to use a word or spreadsheet program, though. Thanks.