ellenalesa,

My super walmart also carries 'Truvia' as well as Splenda now, so you could try some of that.

Erythritol is like sugar but slightly course grained and slightly less sweet. It is the only 'sugar alcohol' that does not mess with the digestion.

I buy liquid sucralose from sweetzfree dot com which isn't really pricey given how long it lasts and it's zero carb. But I also get DaVinci sugarfree syrups from netrition dot com which are fabulous (4.95 flat rate shipping makes it worth it as they are large glass bottles most flavors) I probably have 30 of those.

There is also a product called Fiberfit which is a liquid fiber supplement also extremely sweet (like 8x sugar, so you use small amounts). I wrote them trying to find out what they used for the fiber to see if gluten might be an issue but never got a response.