Consumables run out before anything else
Hand towel, toilet tissue and soap are consumed at a rate driven by attendance, and a stock level set for a normal week disappears within hours on a busy day. The failure is highly visible, immediately attributed to the cleaner, and entirely preventable with a reserve and a mid-event check. Ask each provider how they would size the reserve and where it would sit and whether anybody checks it before the doors open.
Ask who replenishes during the event as well. A cleaner attending only in the evening cannot restock a washroom at two in the afternoon, so somebody has to. Whether that is an additional attendance, a runner, or your own staff working from a stock the provider maintains, it needs deciding before the day rather than during it and it needs a name against it rather than a general expectation.
