Full field strip (1911), Hoppe's for the bore, unless I've been shooting cast, in which case a bronze brush for the lead fouling, then Hoppe's for every other place there's powder residue.
Then a thin coat of gun oil on everything, especially the rails, then reassemble. Duty gun gets loaded, playtime gun gets re-stored.
Full takedown every 1,000 rounds, or semi-annually, whichever comes first.
Wintertime, I field strip it, wipe it down, re-oil, and re-assemble weekly. When the temps go into the negative numbers, I do it daily.