As people's lives are getting busier, it is easy for them to forget some important events. No matter whether it’s an adult or a student, it is hard for a human brain to remember everything when they went through a tough and busy day. According to research, about 56% of knowledge is lost after 1 hour, 66% after 1 day, and 75% after 6 days. Forgetting is the loss or change in information which are previously stored in our Hippocampus, which is in the brain's temporal lobe. Forgetting something is very normal because humans have to process everything such as daily affairs, emotions, fatigue, stress, insufficient supervision, and so on. Human error may lead to huge consequences such as Chernobyl meltdown, the Seveso disaster, just to named a few. Therefore, a web application which people can use as a productivity and efficiency-improving tool to improve their efficiency in life is proposed. The proposed system will be called "PLANNET" and it is a web-based application. From here on forward, the proposed system will be referred to as PLANNET. The main goal of PLANNET is to assist users in forgetfulness issues and to remind users of their daily affairs, and to develop and design a web application that helps users to keep track of events, reminders, daily affairs with some features such as monthly calendar, daily to-do list, monthly goals, notes, event scheduler, daily expenses records, and events countdown tool.