I like the idea but I think with languages it's better to stick with one till you a certain level (maybe b1/b2) then move on.

If you are going to Italy soon you can memorize "non lo so" to say "I dont know" very effectively. But if you are actually trying to learn and retain "some" Italian, you probably need to know more like "lo" is a direct objective pronoun for him/her/it and "so" is the verb essere conjugated in the present tense for io.