Special signing software can be used to remind repayment. It is a desktop post-it reminder gadget with computer and mobile phone cloud synchronization. You can record the credit card repayment in a post-it note, and then remind it one day every month. The reminder types supported by the convention flag are:

1. Single reminder, only once after the reminder time expires.

2. Important interval reminder: Important reminders will be automatically reminded at regular intervals after the reminder expires until the reminder is manually processed.

3. Regular reminders, such as credit card repayment, can be set to repeat reminders on a fixed date every month.

4. Expiration delay reminder. After the reminder expires, if you need to remind again in the future, you can postpone the reminder.