Don't overschedule by making too many plans that will wear everyone out and shorten tempers. Remain flexible and ready to change plans, even if you're disappointed. When you are disappointed, don't let that spoil the visit. Use the visit to demonstrate and teach your culture and heritage. If the visit includes some special meals, attempt to prepare as much as you can in advance.
Kids get sick.
Your household will be disrupted, and so will you. Your house will get messy. Kids don't sit still through dinner. Don't criticize your children's parenting. From The Essential Grandparent , by Dr. Lillian Carson.