Remembering for work

Last night I double check that everything was locked and off at work. But the one building I keep questioning that I forgot to do something. Since at my work for December it’s free coffee. Anyways I know for sure at 8:30pm I empty one of the coffee machines container for grinds but I keep forgetting if I did the other one after that. I do remember someone interrupted me but a portion after that I don’t remember. I know I empty it at 3:40pm before I started the dishes. I always second guess myself when doing anything. Just hoping I did do it so then I don’t get a complaint. But tomorrow is Sunday someone will be in at 8am and hopefully they empty both. Last thing I need is getting yelled at the boss. There situation is going to be on my mind all day ☹️