One easy way to know how you smell to other people is to walk outside your house for a few minutes then go back in. Your nose will give you your answer.
If it's chicken soup, pot roast, paint or Pine-Sol you're OK. Mildew, urine, cat, cat urine and mildewy cat urine are smells you'll want to avoid.
The caveat is there's really no way to change the way your house smells, and thus no way to change the way you smell. So if it smells bad in there, move or invest in a Christmas tree, preferably one not sprayed with mildewy cat urine.