Metal soda cans and many canned goods now opened thanks to the special loop-shaped handle on the lid. And if the capacity is usually just thrown away, then the loop is easy to find useful for example, for the suspension frames, and small shelves.
Recommend to read
PACKAGE-TUBE
Recently, widespread ready-to-use putty marketed in plastic packages. Unfortunately, the use of such a package is not very handy: cut a hole in it with pressure on the pack often...
TWO CLOTHESPINS
privernuty screws to a wooden cube, to help you quickly and accurately to solder the two conductors.
