What is it something that you always have but you always leave behind?

Common Wrong Answers
“Memories”
While memories are something you always have, they are not something you physically leave behind in a tangible sense.
“Time”
Time is a concept that you always have, but it isn't something you physically leave behind; rather, it continuously moves forward.
“Baggage”
Baggage is something you carry with you, but you do not always have it; it can be left behind or taken with you.
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