Hi Malgosia!
You should defintely try Mionetto IL Prosecco. It is described here at: http://www.garnetwine.com/sku030831.html
Here is the USA website for the Prosecco – http://www.ilsparkling.com/ It has a link for you to find stores in your region that sell it.
In the U.S. you can get it for $9-$11 a bottle. It is a dry, but very light sparkling wine. It isn’t fancy, but at that price you can drink it anytime. It is particulary tasty after dinner. If you can’t find that one, I have had other Proseccos that are also very good for a cheap price. If you get to try it, let me know what you think!
If you want a sweet sparkling dessert wine, Mionetto IL Moscato is very good too.