No, not what “stuff” do you want to fill your house with; what do you want in kitchen cabinets, counter tops, flooring, wall coverings, sinks, faucets, and lighting fixtures. That sort of thing!
Is your homes interior designed the way you want it now?
If not, you need a house makeover; start with either the kitchen or the master bath. Those are the most used rooms in the house and get the best value for cost of remodel, not to mention the mood lift you will gain from having a well designed and well crafted make over for your favorite room!
Think about what you want in your home, research quality home remodelers and then go for it!