Hi J.,
I have 4 children myself and I'm a home child care provider.
So here are the things we have started doing.
Get a sams membership. we buy paper towel, toilet paper, ALL, oxi clean, downy, lysol spray, dish soap, diapers, wipes (some of these might not be for you), only the things you know you use and compare where you would normally shop. When you look at the over all price you pay less and it lasts longer. Our laundry detergent lasts us 1 month and I do 9 or more loads a week.
Next I printed of a sheet that has boxes with the days of the week and a box for breakfast, lunch, dinner and 2 snacks. When I go to the store I fill these boxes in with what meals I'm going to make. I only buy what I know we are going to make a meal with and the exact amount I need. Our grocery bill is $150.00 a week and that is feeding 10 8 kids ages 16 yrs - 1yr, and 2 adults.
We don't go to the movies or rent them. When we eat out it is for a special occasion and it is planned with the meal planning and nothing is bought for that night. We only go out for dinner if it a birthday or we have something planned for that night.
If you do eat out look for places where kids eat free or eat off the dollar menu. For us with 6 of us and 3 of us order adult meals some places are cheaper for us to go then others. For instance it is cheaper for us to go to Fuddruckers then it is to go to McDonalds.
Take a look at your grocery store adds see where things are cheaper and try to have a coupon for it. Don't buy what you don't need.
The other thing I do is a cothing swap: For example My niece has 2 daughters ages 11 and 13 these clothes are way to big for my 2 girls ages 16 months and 4 yrs but, I took them washed them and then asked one of my daycare moms if her SIL would like to swap them for clothes that my oldest daughter could wear (she has an 8 yr old and a 14 year old). My daughter is in size 5/6/6x and thats the size of clothes her daughter is out of. The mom I aksed also has a daughter that is 3 yrs old so I send her what my oldest daughter has grown out of, she then send me what her daughter has grown out of and I give it to my youngest daughter. So out of the 4 kids I have I only have to buy a few nice outfits for the girls and then clothes for my oldest ones. And shop on the off season. I also have clothes for 2 things 1 are school clothes/nice clothes and 1 are play clothes. I will get enough summer clothes for my 2 girls that I will not have to buy anything this spring/summer. And I gave the other mom enough that she will not have to buy spring/summer clothes for her daughter.
Now I have one mom who is pregnant and if she has a boy she will be set because the same daycare mom has just had a boy and I have saved everything I had from my youngest daughter and the same mom with her daughter.
We do a clothing swap every season. It really helps, with my kids being at home I can't see spending alot of money on clothes for them to play in.
There is only one thing we spent money on and that is shoes. But we recycle those to. The kids old shoes become play shoes and the new ones are nice/school shoes. Every season they get new shoes. They haven't grown out of both pairs only one from the previous season.
At the begining of each school year and and then in spring they get a new pair.
Hope this helps and gives you some ideas, W.