I do several things to economize.
I cook "real food" from scratch nightly, so we don't spend $$$ for fast food or restaurants. My husband takes the leftovers for lunch.
I shop carefully, and stock up on staples when they are on sale. I regularly save 50% or more on things like pasta, chicken broth, capers, olives, oil, bacon, nuts, butter, etc.
I run all my errands in one day to save on gas. Or if I have a Dr. appt. that will be the day I run my errands.
I use coupons whenever possible, and I check online to find out which store has the best price on things.
I use Hotwire to book travel. I have saved lots of money doing this. If you book a hotel, flight, and car, you can designate which hotel you want. Priceline doesn't allow you to choose the hotel.