As the Malay saying goes, sediakan payung sebelum hujan (prepare an umbrella before it rains), so, get ahead of the future when it comes to money! Prepare a "tabung" (piggybank) or a mini-safebox for small notes, and deposit it back into bank accounts for big notes.To make it profitable, invest in a unit trust such as ASB, ASN or any private mutual fund, which accepts big and small notes.