Cucumber Salad

My Czech grandmother used to make cucumber salad. She soaked the cucumber slices in white vinegar, while I prefer lemon/lime and rice vinegar, and she used sugar, which of course I don't.

SALAD
1 cucumber, sliced paper thin.
1/4 onion, sliced thin
DRESSING
sprig fresh dill, chopped fine (optional)
1 tbsp lemon/lime juice
1 tbsp rice vinegar
1/8 tsp black pepper
1/8 tsp salt

Prep: Peel the cucumber and slice paper thin. My grandmother would score the outside with a fork to make a pattern before cutting. Some recipes remove the center seeds, which I think wasteful.
Chill: Mix and let the vinegars and any seasonings soak with the cucumber and onion, best 1+ hours refrigerated. Serve chilled.