help! i need some bubble strategies

[awakuni]

i'm normally a cash game player but i play the occasional cheap weekend tournament and lately the last couple of times i've played i've have been the bubble boy. once as the short stack and once with an average stack. does anybody have good bubble strategy because i really feel as if i'm just flailing around without a real plan and i'd like to stop being the bubble boy. specifically i'd like some ideas about how to play with a short, medium and large stack during the bubble period specifically with a fast blind structure. should i gamble more? take a race early? stay passive and play position?