I came up with this technique a few years ago and never had to queue for fresh notes for ang bao since. Hence, I believe it is worth sharing.
When you receive your ang bao this year, do not spend or deposit the fresh notes. Keep it and pass it to your parents to fill their ang bao for Chinese New Year next year. If desired, you can get your parents to bank transfer the amount to you. You will save time queueing for fresh notes next year and save the environment by reducing the amount of fresh notes needed.
Happy Chinese New Year!