For the next tax season the information you need is at the following locations:
Online you can get the General Income Tax Benefit Package. This kit is printable and has all of the forms necessary. It is available in different formats and it is accessible to the blind, partially blind and hearing impaired.
The local provincial or territory post office also has this same package available. The Service Canada office will also have it readily available in February and early in May. However, due to the amount of requests supply may diminish quickly. In this case always check back as they will restock their supplies as needed.