 Miss Manners wrote in her 1990 book Miss Manners ' Guide for the Turn @-@ of @-@ the @-@ Millennium that although the phrase was trite , she wondered whether there was " so much deeply felt good will " permeating through the world that shallow friendliness ought to desist . She stated that for her , saying " goodbye " is sufficient because it expresses the same well @-@ wishing farewell sentiment . <unk> Lowndes wrote in her 2009 book How to Instantly Connect with Anyone that if someone says " have a nice day " , the recipient should refrain from sarcastically responding " Thanks , but I have other plans " or " Gee , I was planning on having a miserable one , but now that you mention it , I think I 'll have a nice one . " Lowndes suggested that the response merely be " You , too . " 
