(something that is) available for use at any time; (someone who is) at one's beck and call; (something over which) one has complete mastery
private power generation; masturbation
home gardening (esp. food); home growing
complete mastery of or over; at one's beck and call
self-fertilization; self-fertilisation
self-centeredness; selfishness; egoism; egotism; egocentricity