In early 2003 I lost a dear friend of mine. She was a wonderful person and she was 47 years old and died of a heart attack. She had a husband and two boys. She was happy. She worked way too much (that is where we met) but she enjoyed her time with her family and she really enjoyed her work. Shortly after she died I started to re-evaluate my life. In doing so I picked up a book called Simple Abundance. It has an entry for each day. You can start the book on any particular day and start reading about her journey. She talks about gratitude, focus, self nurturing and various other topics. Some of the essays really didn't fit me but it was ok for me, it gave me a starting point. A few years later, I made my future husband a gratitude journal, so he could write things down that made him happy. It turned out he really didn't use that, he loved the gift but it just wasn't the format he needed. I have searched for several different formats. I have decided that it is up to each person what works for them. For my young daughter I found a diary for her ipad. She can write whatever she wants and add pictures. Sometimes she uses it as a diary, but most of the time she just put thing that makes her happy.
I just purchased a package of ebooks. In that collection was a book called Gratitude Journal. You can print it out and write in there. It is $5.99 but if you like this format it might be a good one for you. If you like Ipad or Ipod you can get search for gratitude or you can just get a free journal on ipad or ipod. You can go buy a calendar at the dollar store or even just use a cheap note pad.
I do not think it matters what form you use to write down what you are thankful or grateful for, I just think it is important to record it. We are working on our geneology right now. My husband's grandmother passed away a while back, but a couple of years before she did he interviewed her and asked her all kinds of questions. He is very grateful that he has those now. So wouldn't it be great if later in life your children and grandchildren found the things that YOU were truely grateful for. What a wonderful gift, for them to know a part of you!