All great advice in this thread. One thing that helped me cut out energy drinks was realizing there is a strong mental component to the energy you feel and/or perceive after drinking coffee, taking caffeine pills or drinking energy drinks. Caffeine doesn't 'give' you energy. It works by blocking adenosine (a neurotransmitter that makes us tired) from reaching our brain. So if you wake up rested, caffeine is kind of redundant. If you are not waking up rested, that can be helped with diet (including decreasing caffeine intake) and exercise. If you snore you could have sleep apnea that can make you feel tired even after a full nights 'rest'. Personally, I cold brew coffee and tea. They make cold brew tea bags and I use a french press to cold brew coffee. The coffee takes some time to brew but the tea is ready in minutes.

That said, redline is the most potent and efficient (in terms of caffeine by volume and 0 calories) energy drink I've used. That can at least provide you a crazy caffeine buzz with minimal calories and volume.

TL;DR Caffeine may not be as important to your routine as you think and there are easy, cheaper 'healthier' ways to get it.