I believe we should all have a copy of The Constitution of the United States in our homes. This 52-page pocket sized booklet contains The Constitution of the United States (including The Bill of Rights and Amendments 11-27) and The Declaration of Independence. You can order it here for just $1.00 shipped with Amazon Prime.
The National Center for Constitutional Studies has printed a special edition copy of The Constitution of the United States that has been proofed word for word against the original Constitution housed in the Archives in Washington, D.C. It is identical in spelling, capitalization and punctuation.