Joshua Hatton, of Temple Beth Tikva, in Madison, CT writes:

"Every Friday night, at the start of Shabbat, my wife, daughter (16
months old) and I light the candles and bless them.  We also say
kiddush (short version) over wine and the motzi over a challah
(sometimes I'll bake the challah).

We try to refrain from talk of work & business but that doesn't always
work out.  At least twice per month we'll go to Temple for Erev Shabbat
services.  And on Saturday morning I go to Torah study.

I am a born Jew but was not raised as a Jew (or anything for that
matter).  My wife is in the middle of the conversion process.  We do
not do Havdallah, mainly because we don't know what to do for it.  We
have yet to approach our rabbi to discuss that."

Luckily for Joshua and his family (and any one else there who can relate!), there are a number of resources (in addition to rabbis) where information about Havdallah or other at-home Shabbat observances can be gleaned.  Blessings for Shabbat and Havdallah can can also be found in most any bencher, along with blessings for before and after a meal and a plethora of Shabbat songs.