To do s.t. all at one time instead of little by little (such as buying all the goods one needs for a month, receiving all of one's wages at one time, moving all of one's belongings in one trip with a jeep, etc.).
Take all those goods at one time so you won't be exerting a lot of effort going back and forth.
I'm carrying all this rice at once.
I'm doing all these jobs now without stopping.