I love NuNaturals brand liquid stevia. I think a lot of people don't like stevia because it is very strong. It only takes a teeny tiny amount to do the job, so if you put in too much it will make whatever it is taste terrible. A drop or two, however, is awesome.
I also just use fruit to sweeten a lot of things.
Learn from the mistakes of others. You canít live long enough to make them all yourself. - Eleanor Roosevelt