Did you know you can shave your Havanese's tummy to eliminate those tangles and mats?
If you have a neck warmer hanging around and you want to keep the belly warm. just place it over the midsection. It's cheap. It works and it looks cute.
You can also clip the hair in the arm pits.
The hair even with all this shaving and clipping can still appear long but reduce most of the work through the blowing coat stage that they only go through once.