Now, sodas aren't always that exciting, but sometimes you nail it. Enough said.
3/4 oz strawberry-lemon syrup
3/4 oz blackberry shrub
3/4 oz lime juice
3 dashes Regan's No. 6 Orange Bitters
Shake briefly to combine and pour into a Collins glass; top off with about 6-8 oz soda water to taste.
I'll let this stand as one of the better examples of the prototypical soda. Really, there's no need to post more, so we'll attempt to be a little more inventive with this final leg of the month.