For years, cash had to apologise for itself. It was safe, certainly, but the return was miserable. Cash can now look investors in the eye with a promise of return that beats inflation.The best one-year savings accounts pay about 5%, with no stock market drama and no risk of waking up to find your investment has fallen sharply. It is a fair question to ask: are shares worth the risk at all, or is saving better than investing?The answer starts with time. Cash is for money you may need soon and sha