For my creative writing class I have to write a postcard story which is a story that consists of ~250 words. I was wondering if anyone out there could lend me some tips on how to effectively construct a story in such limited space. I know I have to limit the story to one main character and can only have limited action or dialogue. I've decided to do my story about an old man who is told by his doctor that he is going to die unless he receives dialysis. The epiphany at the end is the mans decision not to undergo dialysis and die peacefully. Any tips on how I can turn this into an effective piece? I can't really decide on the point of view, how I would construct inner dialogue, or how long of a time span the story should be. Any help would be appreciated.