Seltzer water and add a syrup. They sell them online or at World Market. Like Torani syrup.
Torani syrup is considered a luxury in Italy, its country of origin. It was originally created by the Torres as a flavoring to make the famed "Italian soda." These syrups tend to be sweet; they are available in a wide range of flavors such as Gingerbread, Hazelnut, White Chocolate, Raspberry, Peppermint, Coconut, Cherry, and more. In addition, they are available at many food and beverage retailers like World Market, Walmart, and BevMo.
It doesn't need refrigeration, but it's not a bad idea to do so.
All pickles need refrigeration, once the jar has been opened.
no,
Yes it does need regrigeration.
Once it's open, any mayo needs refrigeration.
Refrigeration
No
It slows their spoilage.
No
Raw maple syrup - such as you would buy at a country stand where they make it on the property - should be refrigerated, yes. Store bought maple syrup does not need to be refrigerated, in fact one well-known brand states on the label: "Refrigeration not necessary". Unless you use your syrup within two or three weeks after opening, it helps to refrigerate it. I've had open syrup develop a type of mold after a few weeks even though it was labeled not to require refrigeration.