If they did not do their job then who cares, Time for thicker skin.'

Places where the loan amounts tend to be smaller, lenders have thicker profit margins since profit is tied to loan amount, but compliance costs are the same $4k to $8k per loan (depending on whose estimate you believe) no matter the loan size. 

Only thing I can add are "hacks" are more physical, "hardening" I think someone else had called it..During rehab, I put a thicker layer of plywood at the bottom of sink cabinets because particle board doesn't handle drips well.  

Putting on a thicker floor finish coat...?

It's more work, more hassle and you have to have thicker skin.     

Whomever told you that you can only do it once or twice was probably referring to an engineered hardwood product (they have a thin layer of real wood over a thicker layer of particle board).If the floors are real hardwood all the way through then you can sand and refinish them many many times.If you're good about it, you can usually get away with a light screen/buff and re-coat instead of a full deep sanding.

Buy the plus primer level as it covers better and is thicker...your time is worth it.

I agree with @Julie Marquez totally carpet, the thicker the better. 

It can grow thicker to where it will need a permit and cause other headaches, but we can monitor that and get rid of it before that happens, and that shouldn't be a problem for 2-5 years, maybe more.I prefer to get rid of it now so it's just one less thing to think about later.  

The big box stores only had 2mm in stock so will be visiting a couple of floor distributors to see if they had the thicker plank.For people who are using the Allure where are you buying it from?