Consciously set aside things you identify with to reduce your karma

Every night, sit on your bed, preferably cross-legged, with your eyes closed.

Remind yourself that all memory is accumulated from the past.
Everything about you is acquired: your ideas of nationality, race, religion, likes, and dislikes.

Slowly, gently, set aside everything with which you have a relationship.
This could mean forgetting people, your material possessions, sensations, thoughts, and emotions. Remind yourself that even your body is an accumulation.

Imagine that you are on your deathbed and that you will die in two minutes.
See your sleep as impending death. You may feel a certain fear and struggle within initially, but it will pass.

Lie back with your eyes closed and go to sleep
If you do this each night, a great deal of karma can be worked out each night.