Plan ahead for when you will return. It will help you to not have remorse later when you realize that you didn't get a special picture of something or forgot to remember a gift for someone.
Gifts?
are there people for whom you need to buy a small gift? (relatives, people who have given to support you on your trip, people covering your responsibilities while you were gone, others?)
make a list to bring along (you don't want to have a gift for everyone except that one important person...)
gift items don't have to be large - it could some type of candy or other food item, a special type of soap, or it could be a local handcraft (see the page about souvenirs)
Reports?
Will you be reporting back to your church or in some other venue?
Think about what you might need to make your report interesting. Pictures, videos, a coin or snack for everyone?
What types of pictures or videos? Do you want to focus on the ministry in SPS, or focus on how the team members served, or focus on what each team member learned?
Most likely, people back home will want to know more about the missionaries, the ministry, some interesting parts of the local culture, and pictures of you doing something.
Storage for pictures?
Take a few minutes this week to determine where you will store pictures and videos from your trip.
Do you need to clean off a camera card or download pictures from your phone onto your computer so that you have space for new pictures?
Are you going to use an online storage app (dropbox, google photos, etc) to store extra pictures during your trip? If so, do you have space, have the app set up on your phone, remember your password?