Do you know your polling unit? If no
This is the most important, As it is the only access you have to vote.
It is advisable you to go to your poling unit with a bottle filled with water to avoid dehydration.
Hunger would make you lack strenght and loose your enthutiasm, avoid that and take a snack along.
This would make you keep the sun away and also serves as a security by making you like a badass.
Put on a well fitted cloth and avoid partisan shirt, avoid clothes with opening to keep your belogings safe.
This would keep you safe from threatning atmospheric condtion (Rain, Sun...)
This would keep your head calm, thereby avoiding you do the wrong thing
It's certain you don't want to miss any information and that's why having your powerbank with you is important
Remember Vote not fight.
Materials not compulsorily needed such as airpods,Rings, Wrist watch e.t.c shouldn't be with you at the polling unit to avoid loosing them.