When receiving the same gift (e.g. stew) multiple times the My Gifts will show the item only once with a total of all servings.
However, when u move the item to the restaurant it only provides the original number of servings not the total and the item is taken out of My Gifts so you can not use it again.
Other than that:
Tips are awful small for the services provided.
I am enjoying the game, however, it is quite time consuming.