I don't use a bank for savings except "emergency money". They pay less than 1% interest. I invest in the stock market. I have stocks in my account that pay 10% or more per year. Last year I made 17% on my stock account.
I buy groceries on sale and make my menu around what's on sale. That will save you 25% to 40% per week off your food bill. I always go to the store's bargin bin. I find lots of savings there. If I find meats in the meat section that are discounted and cheaper then I might have bought otherwise, I buy that and change my menu. I bought discounted whole fryers for 48 cents per pound and filled my freezer. I don't buy fad foods like chicken wings. When I buy whole fryers I cut the chicken wings off and freeze them for when I want chicken wings. I seldom buy boneless skinless chicken breasts. I can cut the bones out of chicken breasts myself and save the $30 per hour the butcher gets.
I go to more than one store if I can find a deal to justify the trip. I won't drive 5 miles to save 1 cent per pound, but I will drive to save 50 cents per pound. I know stores will put certain items on a real good sale once or twice per year and so I buy those specality items then. Examples: charcoal briquettes go on sale on Memorial Day and 4th of July cheaper than anytime of the year. I buy the 100 to 150 lbs of charcoal I use in my grill each year at those times. I buy corned beef brisquet at St Patrick's Day. I buy turkeys, flour, chocolate chips and baking goods at Thanksgiving. I buy toilet paper between March & June and between September and October. It will be cheaper then than at any other time of the yeat, usually about half price. I like spicy brown mustard. It normally sells for $2.50 to $3.50 per bottle. When two of the major stores in my area put it on sale for $0.50, I bought 50 bottles. Friends asked me what I was going to do with all that mustard. When they buy 10 bottles for the regular price they have paid more that I did for all 50 of mine.
I buy used cars or I buy new cars and trucks when they go on sale as loss leaders. I change the oil in my vehicles every 2500 to 3500 miles. Oils is cheaper than engines. I take care of my vehicles and usually drive them for 10 or more years.
My wife cuts my hair. I have a garden. When I wore white shirts and ties, I'd buy my white shirts on sale in January and I'd buy enough for the entire year. If I want a cute speciality tie, I'd buy my 4th of July ties, the week after the 4th of July. The same for Christmas ties or Easter ties. That enables me to get them for 75% off.
I had electric appliances. (Stove, oven, water heater) and gas heating. I would use enough gas in the winter time to get charged more than the minimum gas bill. But during the late spring, summer and early fall, I would pay the minimum payent on my gas bill. I was paying for gas I wasn't using. I changed my stove top, ovens (2 oven wall unit) and when my water heater gave out I made it gas. Now I pay just above then minimum gas bill all year round. My electricity bill has been cut $30 to $50 per month.
When the new enery saving flouresent light bulbs went on sale (25 cents each) I bought enough for my whole house and spares. I replaced the 300 watt driveway lights bulbs the house with two energy savers and save 450 watts when i have the driveway light on. I did the same with the 150 watt sun lights in my kitchen, bathrooms and dining room. I changed my single pane windows with dual pane. I added insulation to my attic and I use an attic fan on a regular basis. I took my $200 to $235 average electricity bill (level billing) to $80 per month (level billing).
I' always looking for bargains.
Good luck to you and yours.