When a person takes to Krsna consciousness, there is no need to care for material necessities. Krsna says that He personally carries all the necessities to His devotees.

"Those who worship Me with love and devotion, meditating on My transcendental form-to them I carry what they lack and preserve what they have." (Bg. 9.22) Why should one be anxious about the necessities of life? The principle should be that one should not want more than what is absolutely necessary. Narada Muni advises the hunter to accept only what is absolutely necessary for him and his wife. The devotee should always be alert to consume only those things that he absolutely requires and not create unnecessary needs.