ALBUQUERQUE, N.M. — The no-sew Roman shade worked well the first time but there were some issues that came up in the years since. That’s why it’s back to the drawing to make a new no-sew Roman shade.

Dear Jim: I should replace my windows to save energy, but with the bad economy, I cannot afford more debt. Is installing insulating window shades or curtains a viable option and which types are best? ...