I would prefer that I could pay with Bitcoin all my bills
If you pay your bills by credit card then there is an opportunity for you.
There are many kinds of bitcoin debit card which you can easily spend your bitcoin and get instant into cash or spend online like normal credit cards.
I wish Amazon starts accepting bitcoins.
AMazon has all the things that I love

You can buy amazon gift cards through Gyft, and get 3% cash back, I highly reccommend it.
Or you can buy here in digital goods for 20-30% OFF and save a lot, but gyft seems more trusted.