Decluttering your household papers can be daunting trying to figure out how long you should keep certain documents for fear you may throw something important away. Here are a couple of links with guidelines on what to keep and for how long.
Drowning in paper? What to keep, what to toss, what to digitize from Apartment Therapy. It also talks about what should be shredded and what is ok to just toss, and has some quick “Toss or keep?” decision tips.
Here’s a link to the usa.gov website that lists guidelines on Managing Household Records. In addition this has great tips on what to keep in an emergency supply kit.