Single apartment dwellers of Reddit, what life hack did you come up with all on your own that improves your living experience?

Even outside of an apartment, as far back as when I was in school? Pre-preparing things goes a long way. So like the night before, I’ll prepare and store lunch the next day. I’ll pick out an outfit and set it beside my bed so I can just get dressed once I awake, vs fret over what I’m going to wear.