One summer go-to for us on sammiches is:

mayo
lemon juice
dijon mustard
fresh horseradish
fresh tarragon

All to your specific taste.

Same spread is our base artichoke dip as well.

The DIPCHIT ADD, after a morning of drinking:

You despair, repeatedly, constantly! daily basis?
A despair ninny.
Sack up, despire ninny.