<prompt> Translate the following text to SwahiliEveryone has his or her own technique for getting the best price, but a couple of general rules decide in advance your spending limit and stick to it; and do it with a smile these people have seen it all and will not be brow-beaten.  <response>: Kila mtu ana mbinu yake mwenyewe ya kupata bei bora, lakini sheria chache za jumla huamua mapema kikomo chako cha matumizi na kushikamana nacho; na fanya hivyo kwa tabasamu. 