boothin

I don’t think any of the coke creation flavors have been available in the 12oz cans, at least I’ve never seen any. Only 20oz bottles and the mini cans

Reactions take a resource like an action, bonus action, etc do. You can see the resources that each reaction you have takes from your character window, there is a reaction button at the top somewhere. The purple star is the reaction resource and you should find that sentinel takes one of those, therefore you can only use it once per turn.

Your Firefox should be doing this automatically when it detects the system needs more memory. You shouldn’t need to do it manually in almost any case