I wish they would email the bill. Alas, most just email you telling you that you HAVE a bill... then you have to go to their site to see it. (What? it's a security issue if my email gets intercepted and someone learns I need to pay the gas company $16.49?)
What a hassle - another site to sign up at, more ridiculous and changing password rules to make you pick "good" passwords (if your favorite characters are even allowed).
At least some of them DO send the bill to my e-bank, so that I can see the bill on the same site I am paying it.
That said, I do auto-charge some to a credit card, like the land-line (wife needs it for FAX), toll road, couple of others. And guess what? As long as the amount looks about right, I never look at the bill. It's diabolical, they could be slamming me with small amounts that they no nobody will bother to quibble about, and now, I never even see the details.
(And it does happen. The Long Distance carrier for that land-line comes to $3.68 per month, with Zero services used. That's right, $0.00, plus Federal universal service fund + Fed Telecom relay service + Federal regulatory recovery +Property Tax recovery +interstate services fee. Most if Federal, but CenturyLink has found a way to steal a penny here, a nickle there, every month, from every customer. I am sure it adds up.)