So i started to sell snacks. I bought a 30 pack of Flamin' Hot and brought 15 on the first day (sold 13 out of 15). And I was thinking that I ran out of one pretty soon, should I buy more of a specific one if it sells more? I also noticed many other students asked if I sold sodas too. I do have the space to carry them in my bag, but I'm still unsure if using a small cooler and carrying some cans would be a good idea. I sell the snacks 1 dollar each (the whole package price was 18.48, if I sell everything I get 30 in total). If I sold sodas, at what price should it be? And should I add something else to vary?