A quick post at PDNOnline
alerted us to microGaffer tape
, a professional quality gaffer's tape that comes in rolls that are only 1-inch/2.5cm wide and 8 yards/7m long, as opposed to the 2-inch/5cm by 60-yard/55m standard roll of gaffer's tape.
The much smaller rolls are easier to carry in your pocket or slip into a nook or cranny in your gear bag. microGaffer tape comes in a range of colors and is sold in a pack of four rolls for US$21.50 in the U.S.