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 the meantime, you can start to get rid of many of your old tax records. It's a good idea to keep your tax returns forever. But you can usually toss the supporting documents, such as canceled checks and old receipts, three years after you filed your taxes. That's usually how long the IRS has to audit your return, unless you've left out a big chunk of income. If you have any self-employed income, keep the receipts for at least six years. Keep receipts for major home improvements until you sell the house.