My sister is writing a book which incorporates elemental "magic" or control. Each person can use one of the four elements. We want to ensure that elemental control in everyday life seems natural and is used properly. Using elements is like using your hands, just part of you. Not everyone is a warrior or something super special, so thinking of a normal person living a normal life, except with control over one element. So what are examples of things someone can do with their element to aid in everyday life?
Elements are air, water, fire, earth (geode based not nature/plant based).
Edit for background: 1. This is not earth but a similar world in terms of planetary development. 2. The society is developed like earths modern world, but everyone has a power over a single element. Basically think of earth as it is, but everyone has power over an element.