Spare internet connection

I keep a dongle for when I'm out and about. Also its great for the rare occasion that my internet drops. My dongle is quiet expensive to use. 3GB for £15. Its on pay as you go. Some months I don't use it. Its great for a spare connection. I would never use it for my main connection. Due to the ammount of bandwidth I use. I estimate my bandwidth use to be over 1 TB a month. Upto 8mbps average 6. And only £9.99 a month. Why i use so much bandwidth ??? I refuse to buy a tv licence. I watch all my tv on iplayer, ITV catchup, 4OD. etc. I don't need a licence for that.