Update August 2015 V2: Disney Infinity have announced the three additional characters coming to Disney Infinity 3.0 and they are Spot from 'The Good Dinosaur' as well as Judy & Nick from 'Zootopia' both of which are new Disney films set to launch this year.
Receipts for income tax payments and other bills related to it must be kept for three years. The Internal Revenue System conducts audit every three years. It will be at your advantage to keep receipts that are vital for your tax deduction as well as credits that you have availed in your tax.
In general, you don't need to keep bills around for more than a few months. The exceptions are: anything that was itemized on your federal or state income taxes. You want to keep these around for seven years in case of an audit by the IRS. brokerage statements buying/selling stocks, bonds, mutual funds, etc. You need to know how much you bought a stock for when you sell it, to calculate capital gains. information relating to major renovations to your house.