The Visual Departures Microgaffer Tape 1 in x 8yd (4Pk) - Red/Blue/Yellow/Purple presents a new product that is identical to professional gaffer tape in all ways except the problematic ones: size and weight. Use it anywhere you'd use standard-size gaffer's tape: secure cabling and other equipment, make minor repairs, block out staging, label control boards, and more. It tears off easily and leaves almost no residue, just like gaffer's tape (because that's what it is.)
The difference is, it's so compact, you can buy several rolls and keep them wherever you need them. Keep one in your car's glove compartment; one in your backpack; one in your SLR camera bag (and each of your other gear bags); you can even keep one in your pocket. Now, when you find a problem on the set or location, your solution will be within arm's reach - solve the problem and move on.
Back in the bad old days, many pro photographers would hack around the problem of too-large tape rolls by tearing off a bunch of gaffer tape and then re-wrapping it around the legs of their tripods, tearing off little bits as needed.