Hello from someone who has mostly been there and done that!
Unfortunately, any plan really depends upon how the husband wants to react.
When I separated from my ex-husband, I really tried to do things as amiably and respectfully as possible. He left loads of dirty laundry behind him. I picked it up, sorted it, washed it, folded it, packed it up, and delivered it to where he was staying. However, he never would come and get his personal belongings. So, eventually, on the advice of my attorney, I put his stuff in the driveway and sent him a notice to pick it up by a certain date or it would be hauled away. The point is, we don't always get what we want.
Can you give us some indication as to the husband's attitude towards separating/divorcing?