bank accounts are protected by FDIC up to 100,000(please verify), so even the bank went bankrupted, you can still get back the money.
Some GICs are also protected by FDIC, check each bank for sure which GIC is insured.
Tax Saving Account is available in most banks now(not tax free for Dec). CIBC pays 5% interest. It is a good deal. I do not know the offers of other banks.