Most experts agree that caulking and weather stripping any gaps will pay for itself within one year in energy savings. Caulking and weather stripping will also alleviate drafts and help your home feel warmer when it's cold outside.
Either a horseshoe used for pitching, or the real thing, can provide you a handy carrying device when moving cement blocks. To use, insert one prong into the block’s hole; it will balance neatly on top of the prong. A 6-in. piece of rubber hose slit lengthwise and slipped over the other prong will give you a comfortable handle to grip.