Sometimes you might have to pick up some heavy things and move them somewhere else. Suitcase across the Airport or maybe moving a heavy box you packed up if you are moving. Being to week to do this stuff is not a good thing.
Farmers walk with KBs is a Great way to prepare for these types of times.
Farmers Walk Bench Marks without droping the Bells 100 m with half Body Weight 75 m with 3/4 BW 50 m with Body Weight