бальзам на сердце/душу

good news; information that makes someone happy.

Навскидку, с ходу

Wiki: Without great thought or investigation
I cannot think of any good examples off the top of my head, but give me a couple of hours and I'm sure I could come up with something.
Не могу придумать навскидку хороший пример, но дайте мне пару часов и я уверен, я смогу что-нибудь предложить.

не моя забота, моя хата с краю
(that's) none of my affair;
We can go in his car if he prefers. It's no skin off my nose.

С подсказки freiburg234

Cambridge
Yandex
The Free Dictionary