It’s hard to know what we will need before we have created categories and assess how much stuff there is in each category. Therefore, no need to buy anything but please do have garbage bags on hand for donations, recycling, and garbage.
My clients often have tried to get organized and have many containers. We can empty them out and reuse them in a more efficient way. If we still need containers or some other organizational tools, we will write up a list for you to purchase or we can purchase them on your behalf.