Set a Timer
Try setting a timer for quality time with your preschooler. This works especially well when you're trying to get something done with your preschooler demanding attention. Instead of shooing her away, stop what you're doing and say "Okay, you have 10 minutes—what do you want to do?" Then, let her choose an activity, and give her 10 minutes of your devoted attention doing what she wants. When time’s up, find her an independent activity and head back to what you were doing.