In the past when I have an event that requires some quick energy that enhances my performance in a swim or long distance bike ride I took a 200 mg tablet of caffeine. The problem with that was that it would sometimes lift me up too much.
I found a better solution. Buzz Bites is a chocolate energy chew that contains only half of a caffeine pill. It contains 100 mg of caffeine. It tastes like a dark chocolate tootsie roll. It was delicious and gave me the proper amount of lift I needed. The caffeine pill is too expensive and doesn't contain any vitamins which Buzz Bites offers. Buzz Bites is now on my inventory checklist for important races, or long distance rides.
Just don't think of them as candy as I think they could become addictive, just like any caffeinated product. It's definitely for special performance enhancement scenarios. Check out their website for more information and for ordering!