There are many ways to keep a ladder from slipping. The easiest “put on” her old sneakers or shoes with a rubber sole.
Recommend to read
SECRETS STEREO
THERE, ZENICA EYE. Our vision — natural stereophotography: the image of the same object on the retina varies, as each "eye" sees the object from a different angle. And only in the brain...
STRENGTHEN THE VOICE OF THEIR HANDS
When I needed a megaphone, I became acquainted with the prices of Chinese industrial products: as it turned out, they cost from 1500 to 8000 rubles., and found that such a device can...
