The power of saving

We all have to pay bills, and most of us just want to work some extra hours online to earn extra cash on hands. Would you use what you earn from online to buy other stuffs, or you have to pay bills? If you can, would you consider saving that money for future emergency purpose? For me, I definitely would save that money in bank, and not going to spend it unless I desperately need it. Every penny counts, and saving bit by bit, you can get a lot in the near future. If you can do the math, cosnider doing so.