For lent, my wife gave up alcohol. I am giving it up too, and coffee. I get my caffeine from tea though.
My daughter gave up looking in mirror. She found that idea on a website.
I have been reading these books during lent.
What Jesus Meant by Garry Wills
Simple Christianity by N. T. Wright
I actually am rereading these first two.
Kingdom Man by Tony Evans.
I recommend them all.