A question about email

Do any of you use your “private” email address on a regular basis? Like, I know I have one address for things like message boards and signing up for contests and such but what about things like Ebay, and Pay Pal and even this forum?

See I have a new email address - one that I want to use for personal things like friends and such but I am wondering, is it safe to use with things like Ebay, Pay Pal, this message board, Chapters, Amazon… you know - the reputable public sites.

What are your thoughts?