What can You do in 30 Days?

I have seen 30 Day Challenges before.
Most of the time they are not too interesting.

Then I found this link, which has something for everyone:
30 Challenges for 30 Days

Some of the things I am going to try are:
#1 Write a I-Like-This-About-You note/text/email each day for someone
#2 Talk to one stranger each day
#3 Take one picture each day
#14 Walk/Drive/Run a new route to work/school each day
#21 Practice a random skill everyday

and a personal Challenge:
Declutter my House - 1 item each day for 30 days.
I have a "Cozy House" problem. I like my "things" a little too much. and so, Im going on a spending diet. wish me luck!