Out of Ideas means End of the Game! O.o May I could help u with some ideas? - build a base - build some farms - build your own little village/town - create your own skin - try some pixelarts - do you actually got a mobtrap? - save and copy this map and try to play this map in multiplayer with some friends - create puzzles - or just Jump'n'Run parcours - get all archievements - build your own "To build next"-WALL - ever tried "Sky-Block" (or begin with it!? ) - look for a real building and try to rebuild in minecraft - got a spaceship? *hehe* - build some creatures/monster/robots - and so on~
Or do it like me sometimes and take a break from minecraft and play it later again. Or need other tips? Just ask me.