Abandon worldly pleasure
When the (last) ten started, the Prophet (sallallahu `alayhi wa sallam) would tighten his izaar (i.e. he stayed away from his wives in order to have more time for worship), spend the whole night awake (in prayer), and wake up his family." [Al-Bukhari and Muslim]
And she said:
"Allah's Messenger (sallallahu `alayhi wa sallam) used to exert more (in worship) on the last ten than on other nights." [Muslim]