Some of the stuff in this thread is typical GJ ovekill. Yes, you could use all these tools, and if your objective is to accumulate tools, go for it. If your objective is just to wire your garage, you need the following:
1) flat blade screwdriver to fit outlet plates
2) phillips #2 screwdriver to fit receptacle screws
3) Some sort of wire cutting and stripping plier. Either a dedicated electricians tool, or a set of needlenose with wire stripper groove in the cutter.
4) Utility knife to cut romex sheathing. Or, dedicated electricians tool for that use.
You can use a dedicated electricians tool to strip, cut and bend loops in the wire, or you can use a set of needle nose. I have both, have worked as a commercial electrician (20 years ago), and much prefer needlenose Kleins to the Klein all purpose tool I own. I just wired a fairly large house, and forced myself to use the Klein all purpose tool to see if I was just being stubborn. It worked, but I preferred the needle nose. I used all #12 wire, and the needlenose worked much better to assist getting loops on the screws, and tightening them. If you backstabbed or used 14 ga wire, the tool might be handier. If you haven't used needlenose for 30 years steadily, you might prefer the universal tool.
I strip romex sheating with a utility knife. You can use a dedicated tool, but the knife is so easy and handy, why bother? It's also used for cleaning up drywall edges, etc, so it's in my tool belt anyway. Again, if you're just starting out and start with a universal cutting and stripping tool, you might prefer it to learning to use the knife with enough skill to make it better than the tool. You'll still need the knife for stripping larger wire, like the service entrance conductors.
9" linesman pliers or dikes are handy to cut wire, but not essential. I'd suggest having them to speed up the work and make it easier.
I'm old, and have worked with a lot of electricians over the years, as an apprentice/helper, as a general contractor, and as a project manager. So, I've seen a wide variety. A few use one or more of the "gimmick" tools. Most, however, that I have worked with stick with the basics:
1) 9" Klein linesman pliers
2) Needlenose Klein with cutter and stripper
3) Utility Knife
4) Wide blade Klein flat screwdriver for large terminals and for breaking loose knockeouts (use the 9's for a hammer, and then to grab and twist free).
5) narrow blade Klein flat screwdriver for terminals and plates
6) #2 phillips
7) Universal slip joint pliers for holding onto stuff.
8) an 8 in one or similar screwdriver tool
In addition, they usually have a insert bit screwdriver with hex and square drive insert bits, an automated wire stripper, a universal Klein cutter/stripper/bolt cutter tool, a bent speed screwdriver, a couple of hex key sets, and most importantly for speed, a cordless driver and bits. After that, the list becomes endless; most have bought and tried innumerable tools for one purpose, or that looked good at the time, and have them somewhere in their truck. But, their toolbelt has the above list of basics all the time.
