I like to sweeten my cream a little when I eat it with strawberries, and I sweeten it with stevia extract (I use the liquid form here).
1/2 cup cream
5 drops liquid stevia extract
Add stevia and beat the cream as usual until it's thick. Serve and enjoy. :) You can add more drops of stevia depending on how sweet you like your cream.
Not only is stevia calorie-free, but it also has a host of other benefits as well, so you can enjoy your strawberries and cream with less guilt now! ;)