^ thanks for the tip
and here's the limoncello recipe
1.5 kg (3.3 lbs.) unwaxed Italian lemons (not sure on their US availability, if not, just use the best you can find, perhaps organic?)
1 L alcohol 90% (grain alcohol is best)
700 g (1.5 lbs.) of sugar
1 1/4 L (5.3 cups) water
Lemons very thinly peel (without white skin!)
Place peels with the alcohol in a thick screwtop glass jar, leave 5 days.
In the morning of the 6th day, put the water in a pot and boil it. Remove from stove and stir in the sugar.
Let cool completely.
In the evening of the same day, mix the sugar-water and peel-alcohol mixture together in a glass jar. Close tightly.
Leave for one* day.
Filter (moistened coffee filters would work, and you need lots of them) through a funnel and put into bottles. Schnapps-type bottles work well.
Make sure it's a bottle that can be placed in the freezer, as that is the best way to have it.
Some quick googling tells me that the longer it sits post-filter, the smoother it becomes.
* You can also extend this time, I am not sure what effect that will have..
6 days is time for christmas presents, then advise your recievers to drink it next summer (it's best in warmer weather anyway).