We are Episco[alians and also had the "black thumbprint" on our foreheads yesterday. Our Rector told us that we should wash it off, because going places marked that way, is a sort of bragging that we have a religious belief or something. anyway, we took it off.
Ash Wednesday is observed as a Holy Day, not a holiday and the same is true for Good Friday, a most solemn day in the Christian religions.
I don't give anything up as such and do try to give more of myself to loved ones, and even strangers, when I can.
I can resist anything, but temptation. Oscar Wilde