Since prices must be compared on the same day, this is a very useful service to clients.
You have to sign up, but it's a useful service.
Despite her age, she was still able to perform useful service.
"Jim looks forward to rebuilding his life and being of useful service to others," it said.
It was a pretty useful service - particularly for me the gallery.
The idea is to produce a useful service or product, just as people working in the real world do.
"It's important to reach out, and it would be a useful public service."
The most useful service I provide is a master plan.
"It was a useful service all the same," I said.
They are people who offer useful services to each and every one of us.