Common Similes and Striking Comparisons can make your speech and writing poetic. If you have the ability to find similarity in quite dissimilar things, you may easily become a great poet. Poetry always depends on similes and metaphors to give wings to imagination. Even if you are not a poet, the use of similes and comparisons will surely add to the beauty and charm of your speech and writing. But these devices, just like idioms, are to be used once in a while. Otherwise your English may appear bombastic and clumsy.
Here is a list of the most common similes in English.