Are you now working from a home office?
With the proper documentation on hand, you may be able to reduce your taxable income by some expenses that you are now paying from your home.
Your hydro bill will go up if your computer is turned on most of the time. The space you occupy is probably being air conditioned, and soon enough, will be heated, at a cost. You may be paying insurance, property tax, or rent, repairs, snow removal, gardening costs, cleaning, and a multitude of other costs, that may have always been with you, but with your newly dedicated space, it may be a reduction in your taxable income that your employer paid before you started working from home.
Here is the link to read a summary that may be a benefit to you: