Holiday Tip: There are going to be gifts and there will be unwrapping and plugging in or turning on of gifts.
Read the manual and, particularly if it is kitchen related, take it apart, clean it, and put it back together right out of the box. Before first use.
You will find plastic inserts that melt, things that are supposed to be cleaned you didn't know about, etc. Then download an online copy of the manual and recycle.