allow for decompression, NO PARTIES, NO RELEATIVES, no mass get togethers, no we gotta go here, gotta go there, No we gotta go to dinner, NO any of that mess. Don't plan, don't coerce, don't obligate, don't tell other people when he is coming, or invite them over on his behalf. Don't make or agree to any plans or allow others to do the same. Don't know how to convey this strongly enough. If he wants to go out , or have get togethers let him do that. Nothing sucks more than being gone from home a year, get hime and all you want to do is BE HOME, only to get dragged here there and the other like a show pony.