How can our life change others?

Every little action we take has a ripple effect and ultimately impacts on the lives of others. E.g If we are slack at work then someone else may have to work extra hard to make up for our lack of productivity.. this may mean they have to go home a little later.. perhaps their partner has been looking after children all day and needs a break but as their partner is late they take it out on the children, yelling at them. The child frustrated start to bicker themselves. However it is also true that the small things we do can have a unexpected positive effect on the lives of others. Sometimes we think we have to make huge changes in this world, when in infact if we all take little steps each day to make the world a nicer place we would soon see the difference.