what would be a good all purpose cologne that I could wear daily?
I don’t know much about colognes so I can’t help, but your question is incredibly vague other than the daily bit.
Is this for work? School? Parties too? What kind of smells do you prefer/hate? Loud and proud scents? Or more on the down low, keeping closer to your skin?
Inevitably, you need to go out and try it on your own skin.
CK One…everyone likes it and it’s universal…it’s also excellent for asthmatics since its base is Green Tea
Well, as you can guess there this question is one of the most asked questions in a perfume shop 
It depends. There are really a lot “all Purpose” Colognes on the marked.
If you ask the same question in a store, you will be asked some more questions… like
a bit sporty? Maybe fresh? Or more Spicy? After you answered thoese questions, you will get an advice for 3 or mabe 5 products.
Then you try which one fits you best and thats the one you take for “all Purposes”
I found Acqua di Gio that way 
And i still like it very much. Its my everyday cologne i boost with A314 during the week. Allmost perfect. But it is not very present… i m looking for something more present right now.