Dec 25th
I'm going to back to Japan tomorrow to see my family.
We haven't met seen each other for two months.
I am missing miss them but I don't know whether they are missing me.
This picture is of my Christmas gifts for them. Anna and Elsa's dolls for my daughter, a toy car for my son, and a trader's joes Trader Joe's bag is for my wife.
The Trader Joe's bag is the cheapest one in the gifts.*
I'll be back to in the U.S at on January 1st.
I wish you a Merry Xmas** and a Happy New Year!
* Was this a literal translation of 〜の中に〜? If you wanted to still use that structure, you could say "Out of all the gifts, the Trader Joe's bag is the cheapest", or "The Trader Joe's bag is the cheapest of the gifts".
** "Xmas" will definitely be interpreted as "Christmas", but it's mostly used for texting or other very quick written messages. It would probably be better to write out "Christmas" here.
Hope this helps! Have a good visit with your family :)