I have been painting small items lately and this is what I do.
Brush off the dirt.
Wirebrush off loose stuff.
Wipe object with mineral spirits.
Blow dry with compressed air.
I like to brush paint and I have lots of those both in latex and alkyd
or polyurethane. Lay on as many coats with good brush until lhe thing
looks good from arm's length.
Admire your work.When it doesn't smell anymore bring it into the house.