I've...
...been plugging up the neck of the typical tube with a small brad/nail. If we're talking about the "zap-a-gap" type containers. You know, with the long tappered neck. They usually have a second dispenser neck they give you because they know it's gonna clog. I can pull the nail out (sometimes using vice-grips) and have had a bottle around here for over a year and that still runs like water- all over my fingers and parts, tools, the workbench gumming things up nicely!
Sometimes I use a tiny tube that is sold in 3 packs. I'll toss one in a box when I'm travelling for emergency repairs or just building something away from home. They have a screw on cap and last quite a long time. There's more than enough for several jobs and if it dries up it's quite a bit less than a whole container.
That'll be $0.02 please. (Anyone notice they left the cents character of these keybirds?)
Mark