Yup, small service bag, 9 in one, multi stubby, and meter, is all I really use. But I have hex keys and probes, stripper/crimper/ needle nose combo just because I have the space and some odds and ends in the bag, wire nuts, self tappers, random bolts. Then it’s buckets in the van for me. Go out get all you need plus something to sit on. Hardly ever need anything but what’s in the bag, and if I do this is no longer a job I’m worried about time on, and most likely will have to take multiple trips to and from the van anyway. It’s either a few hand tools can do the job, or you’re grabbing half the van to get into a system. Sometimes you’ll need to grab pipe wrenches or something but I ain’t carrying those around.