Not let grass grow under feet

Not let (the) grass grow under feet
= нечего не откладывать в долгий ящик
- not be idle or lazy, or waste time /
- do not delay откладывать; in getting something done.

Example Sentences
1. He is always doing something. He never lets the grass grow under his feet.
2. I have always thought that I ought not to let the grass grow under my feet.
3. Now that you know what to do, act right away. Don't let the grass grow under your feet.

4.
Jane: Last night I told Alan that we needed a new bookshelf, and he had built one by the time I got home today.
Jill: Boy, he doesn't let the grass grow under his feet.
5.
A: Do you think the manager's already started to do something to solve the problem?
B: I believe so. He's the kind of guy who doesn't let the grass grow under his feet.

6. Don't let the grass grow under your feet, kid. Get to work!
Tell them not to let the grass grow under their feet—I want this shed finished by the end of the day.
As soon as he finished all the registration formalities, he put the house on sale. He doesn't let the grass grow under his feet.

9. He is always working hard and is not the type of person to let grass grow under his feet.