1. Use one word for many:
a. Know definitions:
The letter was written by someone who had not signed his or her name.
The letter was anonymous.
b. Use front modifiers:
He requested a trial by a jury of his peers.
He requested a jury trial.
c. Avoid overlapping subordinate constructions:
A watch is an intricate instrument to measure time, which many people consider the gift that is the most valuable of all.
A watch measures time, which many consider the most valuable gift.
d. Avoid tautology:
He referred to basic and fundamental principles of physics.
He referred to basic principles of physics.
e. Avoid empty subjects:
It is truth which will prevail, he argued.
Truth will prevail, he argued.
f. Don't overdo it:
At each end of the sunken garden, worn marble steps, flanked by large oak trees, lead to the burial ground.
The garden has steps at both ends.