Use simple invitations without embellishments or choose chlorine-free or treeless paper.
Skip the paper invitations all together and send e-vites. People can send a response back through e-mail as well.
Create a wedding website to plan parties, showers and so on.
Dress
Buy a vintage dress rather than something new.
Donate the dress after the ceremony so it can be used again.
Location
Have your wedding and reception at the same place.
Have an outdoor wedding.
Gifts
Only ask for gifts you'll use.
Register with companies that encourage sustainable and Fair Trade practices.
Ask for donations to charity organizations instead.
Instead of buying gifts for guests, which most people throw out, donate to charities on the guests' behalf. If you still want a gift, offer environmentally friendly options such as a tree.
Catering and decorations
Use local, in-season ingredients in your menu. Also, think about quantity. Can you donate extra food to an organization such as North York's Second Harvest?
Go vegetarian.
Use in-season flowers, vines, greenery or produce for your flowers and decorations. If you can't skip the roses, purchase organic and Fair Trade items.
Use potted plants that can be given away after the ceremony.
Don't use anything disposable including dishes.
Honeymoon
Think green when you travel. Visit www.insidetoronto.com/article/46891 for an article on green travel including how Toronto considers itself a green destination.
Other
Purchase carbon credits to offset your consumption.