In a mixing bowl, combine 2 tablespoons of softened cream cheese, 1 tablespoon of fresh dill, and salt to taste. Mix until smooth and creamy.
Generously spread the cream cheese mixture on one side of each of the 4 slices of white bread.
Layer thinly sliced cucumber on top of the cream cheese on two slices of bread.
Top with the remaining slices of bread, cream cheese side down, and cut into quarters.
In a bowl, mix 4 large hard-boiled eggs (chopped), 2 tablespoons of mayonnaise, 1 teaspoon of mustard, and 1 tablespoon of chopped chives. Season with salt and pepper to taste.
Spread the egg salad mixture on one side of each slice of whole grain bread.
Place another slice of whole grain bread on top to complete the sandwich, then cut into quarters.
Spread 2 tablespoons of softened cream cheese on one side of each slice of rye bread.
Layer 4 ounces of smoked salmon, followed by drained capers and thinly sliced red onion on two slices of rye bread.
Top with the remaining slices of rye bread, cream cheese side down, and cut into quarters.