Echo routine

Situation:

It's saturday on the night. Before you go to a friend's hous, when you're wearing, you realize that your shirt is worn. You decide that need one new. So you start on your own car to the mall for buy another new. When you have finished, you return to your house on your car.

Details of the routine: 

Problem

Solution

1) You go on your car to the mall.

You can utilize public transport or a bicycle to get the mall.

2) It's night, so you need a lot of ilumination that need a lot of energy.

Go on the day, for don't utilize ilumination or you will need less.

3) Thinking: my shirt is broken so I need another shirt.

If your shirt is broken, you put another and the next day you go to fix it.