Too much attention

I am paying for it now. We have been spoiling our dog especially the youngest female. I brought her everywhere when she was a puppy. Now she gets used to that, she thinks she has to go with me every time I go out the door. Now I paying for it, she will bark on top of her lungs trying to get my attention. Even when I just have to run outside just to get something she will bark and I am getting irritated! We are still spoiling them by just bringing them everyday to the store instead of just leaving them to the house. I am not sure when and how we are going to stop that barking habit. I am just hoping that it will get better when she gets older.