The envelope challenge is a fun way to easily save money. All you need to do is get plenty of envelopes and label them a different number like $1-$100. Then randomly choose one or some envelopes a day or a week from your pile and place the corresponding amount in the envelope. 

At the end of the challenge, you will have saved many money. After you finish the challenge, you can repeat the process as many times as you wish which will help you save more and more money, that really works!