Instead of putting the white pins back I snap a rubber band along the length of the tube so it runs over the open ends, keeping the chips/sockets in. The down side is the rubber over time will age, die, and dump the contents if you do not spot it. How long depends on what is in you air.
Even when the original tubes come with the "rubber stoppers" aka foam plugs, it is common pratice to chop up the tubes as they go out to customers. There are not enough plugs to ship to everyone.
No, likewise not longnose pliers either, the point of using side cutters is they slide under both sides of the head of the plastic plug, and you can then lever it out easily.
No, likewise not longnose pliers either, the point of using side cutters is they slide under both sides of the head of the plastic plug, and you can then lever it out easily.