All you need to have to send money is the cash to back up your payment and the recipient's details. Write a personal check or obtain a certified bank check or money order. Write in the exact dollar amount that you want to send. Sign and date the check or money order.
Refrigerating Butter. Unless you need softened, room temperature butter on a daily basis, keep your butter in the refrigerator to extend its life. Butter will last as long as one month after the sell-by date on the package if kept continuously refrigerated.
Most sources I've read state that you can keep salted butter frozen for up to 9 months and unsalted butter for up to 6 months. Be aware that butter will pick up odors from surrounding food in the freezer and you might like to add some additional wrapping such as foil or put it in a sealable bag.