RESPs
A Registered Education Savings Plan is similar to an RRSP in that it uses "registered" savings to tax-defer the growth in the plan. An RESP is often used for children to save for their post-secondary education, but can be used for anyone planning to attend a qualifying program.
For children's RESPs, the governement also contributes between 20-40% (to a maximum) through the Canada Education Savings Grant (CESG). As with the RRSP, the earlier you open an RESP, the longer your savings have to grow.
For more info:
Government of Canada Guide to RESPs