Modern bottles or tubes of glue or sealant have the tube feeding lengthened proboscis, in which the remaining mass dries up, making it impossible to re-use.
To avoid this, before a long break in the insert inside, beneath the peeled from the adhesive proboscis, plastic circle the size of the screw cap and the contents of the tube will never dry up.
Recommend to read
CANNED FOOD FOR BIRDS
A simple feeder for small birds can be done literally in minutes, using a tin can and a stick of wood or a suitable diameter of the branch.
MODERN SCHEME
Odnokomnatnaya model well-earned position in the class F2A. At competitions it is hard to escape the thought that flies the same speed — they are so similar. The approved scheme is fully...