Eggshell - Traditionally refers to an oil-based paint with a silky finish, suitable for interior walls and woodwork. Water-based alternatives are now available.
Preparation, the key to a successful paint job is to take the correct steps when preparing the job. Preparation for this article, has two parts, the first part is wall prep. The walls you are going to paint may have nail holes or imperfections that need to be filled before you paint. The proper way to fill them, if they are smaller is with water putty, by simply forcing a little bit of the putty in the hole and breaking it off flush with the surface. For larger depressions, use a drywall compound or spackle, which may require a second application to fully fill the indentation and make the repair/"patch" flush with the wall.
Either edge of trim is painted with body color, and is where caulking is applied at most 90 degree angles. Painting trim only, cannot feasibly include caulking, as this fails and opens up over time. Most homes need new caulking when painting the exterior, and a close inspection can determine.
Remove side view mirrors (unless they're to be body color) as well as exterior door handles and locks. This will take some extra time because you need to remove the interior door panels to get these off, but it's worth it. Head lights, tail lights, marker lights and license plates should come off too, but you'll need them in place to drive to the paint shop. So bring some tools so you can quickly take these off once you arrive. Depending on the year Mustang you can just take off the chrome bezels or rings. The shop can then easily mask the headlight or tail light itself and still get plenty of paint around the edges.
Store your leftover paint in plastic Rubbermaid beverage jugs or other plastic seal-able containers. Paint left in the can always gets funny after time. Either the can isn't properly sealed of it gets exposed to extreme heat or cold. I like to store my paint inside where the temperature is controlled.
Fortunately, you can always get your primer tinted for free. Getting your primer colored the same as your paint will save you a coat of paint. Of course, I always recommend doing a minimum of 2 coats of paint so that your finish sheen looks consistent.
Don't ask friends to help you paint. Basically, you are asking them to give up their day off to save you money. You don't want to be first on the list when your painting buddy hits you up to help him move do you?