My wife puts gun powder in my oatmeal every morning.

The only thing I've ever found that works is powdered sugar mixed with boric acid (not boraxo) about 2/3 sugar to 1/3 boric acid.It's poison, so place where pets and kids can't get it.The ants carry it away, so it isn't there very long.

Tree limbs that overhang are good spots for mice to enter house.. yes up high..Pest control companies have great results they use a powder that mice contact and kills them.  

@Cole Raiford my powder is dry and ready; but I am not at all expectant.

I use FB Pale Powder in bathrooms and laundry, and Borrowed Light in the Master Bedroom. it’s more work but makes the houses seem higher-end.