Any guy who's visited a thrift store or a secondhand shop can attest to the ties. Some are hideous, but some are great - unique, but subtle patterns, or an lived-in color combo that can bring your getup together.
There is, of course, the problem of size and the insane widths that used to pass for stylish. But! Snag that vintage necktie anyway, cause its easy to adjust.
Ties.com offers this straightforward tutorial for transitioning a fat tie to a sleek skinny one, requiring only a pair of scissors and a needle and thread to do the deed.
Check the full how-to at Ties.com - Skinny Tie DIY: How to Turn Your Standard Tie into a Skinny Tie