**Update**
Yesterday I looked at the fuse/relay box located on the front driver's side panel under the hood. This box houses fuses and relays for the ignition, headlights, ABS, etc. which are all the components that have been giving me intermittent problems. (see my other post about the ABS and Red Brake light)
I noticed nearly every wire/connector had green oxidation/corrosion on the bottom of the box.
I sprayed out the box with CRC Lectra Clean and compressed air.
Then removed each fuse and relay one at a time, cleaned the contacts on the fuses and relays, sprayed down into each set of contacts in the box with CRC 2-26 Electrical Grade, and blew out with compressed air.
I did the same with the main power post for this box that connects to the battery along with replacing the parking lights and horn fuses which were very badly corroded even up inside the fuse.
I also performed the same cleaning steps for the fuse/relay box on the front passenger side panel under the hood and cleaned another ground near the front passenger side headlight.
I then sealed the top of each box with duct tape.
So far the car starts and runs well and this morning was ~45F. Time will tell whether this did anything. The issues were intermittent, so I need to give it a week or two before I would feel confident.