The 31st of December 2018 is the last day of the year and Make Up Your Mind Day. If there are still some things left of the passing year that you are not sure about, then Make Up Your Mind Day is your chance to bring them to an end. Different options come along with the need of a decision. Being unable to decide is a status of stagnation and should be ended as soon as possible.
When you are stuck between two possibilities it can be difficult to figure out the best option but the new year will be much easier to start when you have made up your mind on everything. It is unknown who once decided to call out Make Up Your Mind Day but that person surely wanted to encourage the people to clean up with untaken decisions and start the New Year with a concrete direction to follow.