The phrase "a useful bit of" is correct and usable in written English.
It can be used to describe a small piece of information or advice that is helpful or beneficial in some way.
Example: "I found a useful bit of advice in the article that really helped me improve my writing skills."
Alternatives: "a helpful piece of" or "a valuable snippet of".
Mr. Dervis said the pockets were a useful bit of ahistorical fashion dash.
Professionals, on the other hand, could very well perceive it as a useful bit of work.
Garden apron The gardener's equivalent of the builder's tool belt, a garden apron is probably as much of a poser's pouch as a useful bit of kit.
That's not to say that other wines don't work too, but that if you're stuck in a restaurant it's a safe bet – a useful bit of know-how to trot out if you're planning to impress on Valentine's night.
These include a useful bit of kit to help you create the perfect Christmas cocktail and a handy hook (which looks more like a medieval torture device than a harmless kitchen gadget) to help you dish up the turkey.
There's an excellent performance from a very young looking Kenneth Branagh, a useful bit of stammering from an equally fresh-faced Colin Firth and some pleasant shots of pastoral scenery and old trains gushing steam.
This is a very useful bit of information to have if you're in a situation where you're running low on power and need to stretch the juice as far as you can.
"It's a scientifically useful bit of nomenclature and, I think, given the psychological power behind the word planet, it's also more consumable by the general public," Runyon said.
But a more useful bit of terminology was introduced by John Martin Fischer (1982, 1994).
Catherine Rampell also has a very useful bit of analysis over at the NYT, showing job impacts.
It is a very useful bit of therapy, it can be enormously helpful to people to know that their doctor is of the view that they are unable to work.
