Cleaning the OUTSIDE of an acrylic tank?

[Djhgksga]

Our 36g tank is a bow front, which means the bow is acrylic.... we're finding it's getting all water spotty and smeared on the outside, and I've tried just using water and a paper towel to clean it.

I also tried vinegar and water, then wiping it down... still streaky.

I tried a biodegradable cleaner (don't worry, I did NOT spray it on the tank - I sprayed it on the paper towel in a completely different room, then wiped down the front of the tank, staying away from the lid.) Still streaky........ would that work if I did it using the same method and some Windex?

Any other suggestions?

 

[KcMopar]

I use car wax on mine. First I use a damp towel then I fallow it up with a dry towel by buffing it dry. Then I apply a thin coating of car wax, buff off after dry, and SHINE-OLA!! Works great!