9 things one must do in Kartik
1. Daily offer a ghee lamp to Krishna and sing the Damodarastakam, meditating on meaning.
2. One should always remember Supreme Lord Hari. Devotees should try to do more Harinam Chanting. Do extra rounds and more kirtana.
3. Hear Srimad Bhagavatam, daily in association of exalted Vaisnavas, if possible. All other duties should be given up in favor of hearing the scriptures from sadhus during this month. It is most beneficial to recite and read Gajendra Moksha Lila-stava from 8th canto of Srimad Bhagavatam, which teaches complete surrender/dependence of Supreme Lord.
4. Eat only prasadam.
5. Daily recite Siksastaka of Sriman Chaitanya Mahaprabhu and meditate on its meaning. Read the commentary on Sikastaka by Bhaktivinod Thakur.
6. Daily Read the the Updeshamrata of Srila Rupa Goswami .
7. Daily offer lamp to Tulsi devi and pray for eternal residence in Vrndavana and eternal service of the lotus feet of Radha and Krishna. Do 4 parikrama (circumbulation) of Tulasi.
8. Make nice offerings for Krishna. Devotees should observe the festival of Annakuta, Giriraj Govardhan Puja.
9. Associate more with devotees.