As you know splenda is made from sugar so it tastes like sugar...but its not so calorie/carb free as it would like you to think! Why? Because sucralose, the artificial sweetener in Splenda, is so incredibly concentrated (600 times the sweetness of sugar) that it needs a “carrier” to dilute it in order to be useful. Unfortunately, the carrier in powdered Splenda is made up of dextrose and maltodextrin, fancy words for “sugar” and “sugar,” so a packet of Splenda has about one gram of carbohydrate, and a cup of Splenda granular has 24 grams of carb. Additionally, some of the powdered sweeteners, particularly the bulk types, have an "off-flavor" which many people find objectionable.

Sucralose however is not patented that means basically you can buy alterior products that use sucralose but dilute it in water! The only problems are the full-strength liquid, as it comes to the manufacturers, is very concentrated. This has two potential problems. The first is that one drop of liquid can be over a teaspoon of "sugar-sweetness" -- not good if you want less in your coffee or tea. The other is that the concentrated liquid tends to create crystals in dispensers over time, clogging them up. Different suppliers have dealt with this in different ways.

Sweetzfree is my favorite liquid sweetener in recipes where I need a larger amount. They recently changed the dispenser on the largest sizes so that they no longer clog, although twice in the course of using the largest size I had to remove a "shell" of crystalized sucralose from the applicator. However, this "shell" is handy for sweetening a pitcher of iced tea. Sweetzfree comes in several sizes. The largest is 4 oz., which gives the sweetness of 96 cups of sugar for $64 (including shipping). This works out to about 67 cents per cup of sugar equivalent. It used to be available only on certain days, but as of 12/31/07 can be ordered at any time.

http://www.sweetzfree.com/

PS: I don't profit from this at all.