We have been open since 1st June and were so exhausted by the cleaning, the amount of time it takes, having to close an hour early to manage it, the drudgery of it all every day, that I bought a fogging machine! It's a bit of a monster but it does an AMAZING job! You fill the tank with disinfectant and water, plug in and switch on. It blasts out a very fine "fog" of disinfectant that settles everywhere. It is doesn't make things wet (unless you use it at very close range) and is saving us masses of time. It was quite an investment at £240 but I thought as we're going to be doing this for months, if not years, it was well worth it. They sell much cheaper ones on Amazon which might be good if you're a smaller sessional setting.