The vet suggests that my cat takes a bath every three months, but I always forget the last time of bath.
My contact lenses should be changed every month, but I always forget which day I should change the new one.
I should contact my doctor once every five months to let her know my recent physical condition, but I always forget the date.
Now a lot of apps can remind us to complete the daily schedule, and we are also very good at creating all kinds of meetings, appointments, and other important events on the agenda. Therefore, I want to design an app so that we can quickly and easily remember these trivial, repetitive events.