I am looking for a piano repertoire called "Just for You". The problem I have right now is that I lost the sheet music and I forgot the name of the composer. The song is in the Key of C and it modulates in different keys. I searched in the internet and youtube and all I found was this guy named Joe Bongiorno. No, that's not the one. 
Hi Jason,
if Bongiorno, on whose website
his "Just For You" easily could be bought, isn't "the man", then there are 2 chances:
First, (but unsure, if it copes with the same muscal themes or if it's another piece with the same name), you could try to buy ( or get somehow, e.g. via libraries, it exists in one or two)) a score of a song called "Just For You", ( Words: C.A. Werner, music: Gustave Ferrari ).- Boosey, 1937.
Just for you.- song.-the words by Carl Avery Werner ; the music by Gustave Ferrari.- New York [etc.] : Boosey, 1937.- No 2
in C [low].-5 p ; 31 cm
Or, second, maybe(?) some other version (or songs / scores for voice+piano), e.g.: Howard / Davis, Chas. K. Harris, ©1911
greetings from 8_octaves!