kid exchanges can happen at school.. so if it's his week-end he gets them at 3pm on Friday from school until 9am on Monday when he drops them back off there. Walmart parking lots or inside the public library are good options as well.
If you are going 'no contact' at least intially, tell the school that so he can't call there & get your information. They have to honor that request.
"Stuff" can be replaced.. I packed personal, irreplacable things (kids baby books, financial records, etc) & removed them from the house a week or two prior to moving out.
I hope for your sake none of this information is necessary & the transition goes smoothly.
Divorced 03/2010 Mom to two amazing kids
Taking the road less traveled because those encountered on the way may be just as unique.