How far ahead can I make party food?

[JRsTXDeb]

Let me know if any of this sounds way out of line - am trying to plan for New Years Eve, making a few things, buying a few but want to do as much as possible ahead of time. Any ideas are appreciated!
thinking of making baked cheese dips - Mississippi Sin and a cream cheese based spread with pecans and jalapenos - thinking 3-4 days mix ingredients and refrigerate, then bake the evening of...
finger sandwiches - day of party or day before? chicken salad, herbed cheese spread/smoked salmon, pumpkin bread with orange cream spread
marinated olives - 3-4 days ahead and refrigerate

 

[AllenOK]

The sandwiches probably should be made the day of, if not an hour or two before your party. Everything sounds like it could be made a few days ahead.

 

[JRsTXDeb]

I can probably make the fillings ahead tho...I'm trying to not be totally stressed out and exhausted!