I make my coffee at home every morning instead of going to coffee shops.
I cook large portions and bring the leftovers for work lunches.
I work from home at least one day a week - usually the same day as my husband so we don't have to drive at all.
I've become a Costco shopper.
I put everything on my c/c and PIF so I get cash back!
I carry a big bottle of water and refill it at home (with tap water or homemade tea).
DH and I only have one car so we carpool everywhere - and we take the train whenever we go to the city.