The art of modern warfare does not necessarily require soldiers to be armed to the teeth to be effective as combatants. ✬

This is an effective remedy for crime. ✬

The most effective defense is offense. ✬

The human race has one really effective weapon and that is laughter. ✬

Tom is an effective salesman. ✬

Tom is a very effective speaker. ✬

Tom certainly seems to be more effective than Mary. ✬

It's only effective at close range. ✬

It's 99.9% effective. ✬

It's very effective. ✬