I'm a little board with minecraft i need ideas on what to do?

I'm not sure about the capacity of redstone on the Xbox version, but you may want to look into learning how to use it to automate some things.

First of all, try figure out a way to auto-harvest a wheat farm without un-tilling the soil. (Hint: You'll need pistons, but not where you think.)

Got a mob spawner? Make it a mob grinder so you can get all the experience and/or rotten flesh you want! This is a bit more complex, but with a bit of work you can pull it off.

Hints:
-Study how water works on a flat surface. Then, put some water nearby one Y value below. How is the first water source affected? How can you apply this?
-How many punches does it take to kill the mob you're spawning? How high of a fall will bring that mob to 1 heart? (This is only necessary if you want it to be more sword-friendly. It could save some durability if you're using a Looting sword.)
-How does the mob you're spawning interact with other mobs? (ie: Zombies and Villagers)