You should never judge something based upon its size, because smaller items may be of superior quality or higher value.
Good Things Come in Small Packages
This idiom is used to excuse overindulgence, particularly regarding food and gifts.
Christmas Comes but Once a Year
something you say when you give someone permission to do or use something
be my guest
To look bright, excited or happy or be overly dressed
Be lit up like a Christmas tree
Something highly unlikely but wonderful.
a Christmas miracle
You place yourself in a precarious situation that may have disastrous consequences.
Skating on Thin Ice
The greater the number of people, the more enjoyable an event or situation will be.
The More the Merrier
When something good happens, especially if it is unexpected. To receive some good news, a gift or a pleasant surprise.
Christmas came early
' It typically means to delay or stop following a particular course of action until further information is known or circumstances change or become more favorable.
put something on ice
Someone accepting or promoting an idea that is likely to cause them harm.
Like Turkeys Voting for Christmas