Last week I challenged you to go start reading a book. This time your challenge is to do a little writing.
Write a letter to yourself that will be mailed in five years and make sure you give it to someone that you can trust to mail it to you at that time.
I know this isn't an original idea as I've seen professors do it with their students in college or seniors in high school.
I bet you'll be amazed to remember exactly what you were doing that this time in your life when you look back five years from now.
The best news about this challenge is that if you use a Forever stamp, it'll still be good in five years when the letter is mailed even if postage has doubled between then and now.