For program control, I made something of a menu handlomg framework for one of my projects and shared the source on Github. Note that this is for chipKIT but the menu handling code is generic. After building my 3rd or 4th huge if-else-if and switch structure, I decided there had to be a better way.

I just use the main loop to check the button.

I'm wanting to say the first step is to get a TFT. If you try it, you'll never go back... I particularly love the Adafruit 1.8" TFT with joystick. Arduinos are slow enough that I cannot recall caring to debounce user input.

For program control, I made something of a menu handling framework for one of my projects and shared the source on Github. Note that this is for chipKIT but the menu handling code is generic. After building my 3rd or 4th huge if-else-if and switch structure, I decided there had to be a better way. Credit for the source of the static menu structures.

I just use the main loop to check the button.

I'm wanting to say the first step is to get a TFT. If you try it, you'll never go back... I particularly love the Adafruit 1.8" TFT with joystick. Arduinos are slow enough that I cannot recall caring to debounce user input.