There are two other ways I know of too get Gaffers Tape. One is buying ends. Most lighting supply or rental places will have boxes of partial rolls and will sell you enough (you usually have to buy a whole box for 15 to twenty bucks) to last a loooong time.

Secondly, 3M makes an autobody tape that is really cool. I think its number 3910 or 3390, and it is sometimes called 200mph tape. It will stick like anything and comes off VERY clean. Its actually meant to go on over soft paint and decals and not rip them off. I've used it in emergencies. Almost any NAPA or the like autostore seems to carry it and they'll usually get in an hour two or so it seems. It has one disadvantage, I can't get it to tear as easily.

- C