Paint the trim and window frame with the outside of the house, “not touching” to them, not to break and the glass can if are stairs with special emphasis – the horizontal bar attached at its ends supports (e.g. wooden “washers or churbachki).
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POLYETHYLENE COVER
From the lids for mayonnaise-tion jars and milk bottles can be cut uplotnitelya strip — polyethylene sufficiently elastic material. And cut the rim of the lid — ready clamp for rubber...
UNIVERSAL INDICATOR
Two LEDs with different color (e.g., red and green), you can build a simple indicator for voltages from 4.5 to 220 V. It is also able to determine the polarity of the source in the range...
