If you miss a move on a stock, Cramer said Tuesday, it's best not to dwell on it. Instead, look forward to its next big run. That's where the charts come in.
Take Caterpillar , for example. This machinery company has had a huge run, up 240 percent from the generational lows of March 2009. It also recently had a nice breakout and, on Tuesday, posted a new 52-week high. For those who own CAT, Cramer said it's OK to take some profits, but not to sell the whole thing just yet.