Well, this is something i've actually contemplated alot. With nobody in my way, I could get down to the things that really mattered. would it be okay if for my example, It was a neutron bomb? as in it killed everyone but left the buildings standing?
Well, the first thing I would do is loot a book store. with the rest of the world dead, there won't be any power, and this would be a perfect way to keep myself entertained. I would take as many manuals and transcripts as I could find, then I would plunder the science fiction and fantasy, grabbing all the Iain m. Banks novels I could find. next, I would go to the out doors shop. This is where I would find most of my clothing, functionable and practical outdoorswear that would suit any situation. Then, I would return to my house, and make any necessary changes (possibly set up a generator if I had the time to find one) and wait it out. I would be able to focus on recreation, with school no longer being a factor. Of course, this would also mean I would have to fend for myself in almost all walks of life. so the next day, I would head down to asda (my local supermarket), and do some "shopping". I would grab perishables in largest quantity, but keep garnering non perishables on every trip I make. this way, I would have a steady supply of tinned foods should any crisis arise and I be kept in one place long enough for fresh food to perish. I would also de-flower my very well kempt garden, and plant crops. realistically, it would take some time before I could grow anything substantial, but hopefully I would have enough stockpiled to last until then. With all necessities taken care of, I could return to writing stories or songs, and wander the town with an acoustic guitar, admiring the serene tranquility of quiet fields and streets.