Hi
Go along to suppliers and get pro toilet descaler, limescale remover, scourers, anti bacterial agent, maybe some pineapple chunks to add that professional touch!
you will need the anti-bacterial for the kitchen and some TO4 oven cleaner (excellent kit) and maybe some stainless steel cleaner if it a pub kitchen, don't forget your mop and brushes (oh and a toothbrush for those nooks and crannies)
best of luck
Regards
Martin