Advance Agent by Christopher Anvil

Dan passed another fish market, then came to a big, brightly polished window. Inside was a huge, chromium-plated bar-bell on a purple velvet cloth. Behind it were arranged displays of hand-grips, exercise cables, dumb-bells and skipping ropes. The inside of the store was indirectly lighted and expensively simple. The place had an air that was quiet, lavish and discreet. It reminded Dan of a well-to-do funeral establishment. In one corner of the window was a small, edge-lighted sign:

You Never Know What the Next Life Will Be Like.