I agree with valve bouncer entirely.

Have you looked at getting it in concentrate form - this would be the most cost effective way of returning with it (especially if you're not able to source it near your home). It can be made up with still or sparkling water - roughly 1/5 calpis to 4/5 water, don't forget to try it with ice. It can also be mixed with fruit juices or a fruit concentrate can be added. With winter coming, remember you can drink it warm too.

If you're brave, you could use it as a cocktail ingredient (I was given a bland strawberry liqueur some time ago and calpis concentrate made it quite palatable).