What is fair use and how might it apply to you?

The term 'fair use' is open to interpretation. A mobile phone company might give you '...unlimited texts - subject to our fair use policy...' This usually means your 'average' use might mean sending 100 texts a week, and would be covered under 'fair use'. If you suddenly upped your texts to 500 a week because of an 'unlimited' plan - that could be seen as unfair use - and the company would likely cap your usage.