HOW DO THEY MAKE US CONSUME MORE?

Watch this video about the ways companies, restaurants or supermarkets trick us to buy or order more:

Have you ever experienced one of these tricks? Do you always keep to your budget or do you sometimes buy products you don't need? Do you think shopping is a hobby rather than a necessity nowadays? Do people just shop for fun?
If you have seen any other tricks in shops, let us know!
Please, post you opinions in a comment.