Use appropriate figures. Scatter plots are useful for illustrating important correlations between variables. Different symbols should be used when points are stacked on top of each other. Illustrations of regression lines should be overlaid on raw data. Regression lines should not extend beyond the range of the predictor variable.
Confidence intervals are more appropriate than standard errors for comparison of groups.
Use appropriate tables. Coefficients and standard errors are useful for interpreting regression predictors. One significant figure beyond the level measured is sufficient for means, standard deviations, standard errors, etc. Two significant figures for test statistics and p values are sufficient. Means should generally be accompanied by some measure of their uncertainty, such as confidence intervals or standard errors.