make arrangements
To organize, plan, or prepare. Typically followed by "for (someone or something)" or "to (do something)." I will make arrangements for you two to meet this week. We're making arrangements to have the faulty equipment repaired next week. Please make arrangements for my sister. She'll be arriving in the morning.
make arrangements to do something
to plan to do something; to facilitate the doing of something. Please make arrangements to have all this stuff hauled away. We will make arrangements to be there on time.