grocery shopping

It really bothers me when my mom goes grocery shopping with out me and comes home with things that I have coupons for ! Since I have a busy schedule its hard for me to go to the store with her but if she gave me a list I would give her all the coupons she need to get the deals. She promised to start doing that or to start giving me the money and list to go shopping for her. Every time I look in the pantry or fridge I just think about how much money I could be saving us !