Several Reasons how the WHEEL and AXLE affect our daily life?

i only have one reason..
1. to reduce friction to move objects around easier..


BUT i need to think of 1 more..
so help me and try to list a bunch of Reasons How the wheel and axle affect our daily life


IF U HAVE THE MOST ReASONS.. ILL PUT U AS BEST ANSEWR
Update: why does this SIMPLE MACHINE affect OUR DAILY LIFE
Update 2: Mandy ur a freakin retard.. ***
3 answers