Do not you find that a bunch of keys in your pocket slizhkom became cumbersome? Solder them in pairs, and it will be much more compact and easier to use. The keys are connected to a pair of depending on the length and destination. Possible combinations can be the key to the apartment and from the mailbox; the key of the garden gate, and to give the key to the garage and from the castle at the gate.
Recommend to read
AND BIKE — LIGHT
When Cycling in the dark there is a necessity to illuminate the road. If you do not have a standard headlight and a "Dynamo" that can accommodate a flashlight with a cylindrical housing....
…THEN, AND ONE
To remove the door from its hinges is not a problem even one. But to hang it in place quite difficult and with the assistant - it is hard to get both at the same time hinges on...
