An extra pair of reading glasses always left in your luggage is a brilliant idea. These flat-folding ones are so slender, they can even double up as a bookmark, and fit even in a travel wallet for you super-light packers. The steel frames have brass temples and come in three strengths (1, 1.5, 2, 2.5, 3) and 12 bright colours so you won&rsquot misplace them easily in your hotel room either (the thin notebook-style case matches the frame colour, too). (Rs 2,249, coming soon to www.mufubu.com)