I take only one kind of tape with me in my field-box. It's variously called "Hatch Tape" or Radio Box Tape" at hobby stores. It is a 1" wide and relatively thick, waterproof Vinyl tape used to seal up seaplanes and R/C boats. It makes a GREAT Monokote repair that will stay indefinately but peals off nicely when you do get around to an official repair.

It's also very nice to have Monokote trim sheets (if your plane has Monokote; though I've used it over Oracote, too) to do relatively invisible repairs. Colored packing tape (aka "Zagi Tape") is another choice. Clear packing tape is a solution that has everything going for it except cosmetics.

if you're lucky you'll never need tape. It's just a day-saver to have some on hand to keep flying or prevent worse problems from occuring.