I have a K.I.S.S. approach.
For ammo, I shoot name-brand stuff - I avoid the eastern European surplus. I avoid Wolf brand ammo. I have been very happy with all CCI rounds, as I have also been happy with the lower end American Eagle brand stuff for my .22.
For my handguns, I stick with brass-cased name brand stuff - Winchester and so on. I don't use reloads in the handgun, just because I don't have time or the inclination to reload. I'll occasionally buy reloads. I practice with my carry ammo - a JHP round is what I shoot in all but .22 handguns, for .22 handguns I shoot CCI stingers and Mini-Mag.
I use Boresnakes for my .22, I also use Hoppes cleaners and cotton patches to clean my guns after use. I clean my guns after EVERY use, even the Glocks and the AK's, which some people claim to "never" clean.
My gun safe has an electric heater and large desiccant pillow in it.