Welcomepack

A welcomepack is a small bag of extras left out for an arriving guest, usually a bottle of water or a snack, added on top of the standard restock a listing needs to function.

Why it is optional where restocking is not

A restock keeps a flat functional: toilet paper, soap, the essentials every guest expects to already be there. A welcomepack is an extra touch on top, booked as an add-on at the same time as the turnover rather than something that happens automatically.

What actually makes one worth doing

A welcomepack works best when it is small and consistent rather than elaborate and occasional, since a guest comparing stays notices reliability more than one impressive gesture. A simple bottle of water every time beats an inconsistent gift basket.

Conclusion

A welcomepack is a nice-to-have add-on layered on top of the restock every listing actually needs.