I've been doing COSTCO (Kirkland) 5 hour energies for like 3-5 years now. Do you have any cheaper, better suggestions (besides not using them).
When Costco used to have Rockstars that would occasionally go on sale, I would load up on them. I've quit energy drinks years ago, I was so addicted that if I did not have some form of caffeine within an hour or 2 (max) after waking up, a massive headache would take form.
Now I drink coffee, also bought from Costco. Way cheaper and better. I think my calculated cost for my ground coffee (Folgers brand) + cream (Coffee-Mate) + sugar (C&H) all purchased from Costco, at normal price, equaled to around $0.10 more or less, for about 20 ounces worth.
While the Rockstars equaled to $1~$2 each after sale discounts.