As Jimi Oke factors out, it does not make any difference what letter the phrase begins with, but what sound it starts with. Considering the fact that "usual" commences which has a 'y' audio, it really should take 'a' rather than 'an'. "Myself X" is not even grammatically accurate, which https://pet-shop-dubai-silicon-oa76319.wikifiltraciones.com/4119838/litter_alternatives_uae_an_overview