If you’ve got an MP3 player you don’t have to carry some big electrical appliances like the CD players to listen some songs.
Thanks to the satellite dish you can watch TV channels from all over the world.
Before invention of remote control people had to leave the sofa each time that they wanted to change the TV channel.
It’s a very easy and fast way tho heat the food by using the microwave oven.
You can carry the laptop computer to everywhere and work where you need it or want.