^^ This. Prime initially increased my overall spend because it was so damned easy. Particularly as here in the UK I can order a book up to about 7pm and have i

^^ This. Prime initially increased my overall spend because it was so damned easy. Particularly as here in the UK I can order a book up to about 7pm and have it arrive next day. My record, I think, is ordering about 9pm and having it arrive at 9:30am :D Amazon Prime was a genius idea.