It is informal but can be used in any situation from cleaning the house to government departments not fulfilling their tasks:
 
What To Do When A Team Member Isn't Pulling Their Weight

[Forbes | 06.11.16 | LINK]

It is generally used when the speaker has absolute confidence in the task. It is not usually used for regular tasks or jobs.

In rewilding Europe, letting nature do the work is no walk in the park

The Grand Barry nature reserve in France's southeastern corner is undertaking one of Europe's largest experiments in rewilding.

At a time when reforestation projects -- planting new trees -- are growing in popularity, rewilding aims to let nature do the work by simply leaving ecosystems alone to recover, free from human influence. 

[AFP | 18.08.20 | LINK]

• Due to the delay in transferring the money, I’m out of pocket by 300 euros.
• THAT'S RICH! Disgraced fund boss Neil Woodford who left investors £450million out of pocket is back in business

[The Daily Mail | 11.07.20 | LINK]

The Dangers of Waiting Too Long to File Your Personal Injury Claim  
 
After an accident, the first thought is usually to get medical help and try to recover. Trying to balance between doctor appointments and the recovery process tends to put a lot on one’s plate. There is also the issue of trying to file for a personal injury suit to claim damages for injuries sustained.  

[Chiang Rai Times | 02.09.20 | LINK]