At its high point in early April, the stock market had climbed by nearly 12 percent since the beginning of 2013 -- just before it lost more than 3 percent in only one week. Fluctuations like that tend to bring out the emotional worst in investors, with people chasing a hot market one minute and running for safety the next. For this reason, as simple as it seems to say "buy low and sell high," people often end up doing just the opposite. To escape being lured into emotional investing mistakes, it can help to have a more disciplined system to approach the market. Large moves in and out of stocks -- or any investment -- tend to increase risk. You can take the edge of off market fluctuations if you take a more incremental approach to investing, easing your way in or out of the market in small pieces rather than big chunks. Here are five examples of incremental approaches to investing.