Eliminate extra cards until you’re down to two or three. Initially, this may lower your credit score, however, I think in the long run you’re doing yourself a favor.
If you know what’s important to you and your family, you’re more likely to focus on it, save for it, and you’ll stop spending money on things that you don’t actually care about.
Looking for good deals can go a long way towards saving you money, can help you stop spending money necessarily, and give every dollar you spend that much more value.