It's got to be on paper. I started, like you, this year. So I'm only on my third day, and I'm using a hardback diary (as it already has the dates for each day written in) that has 2 days per A5 size page, and then I just cram as much in as I can.
For example, yesterday I wrote down some notes related to an eBook I'm reading, and then just added a general summary of how I thought the day went (it was fairly unremarkable). However on New Year's Day, I had something on my mind so I just wrote and wrote my thoughts on to the paper.
I'll be using only paper, nothing digital. I feel like if it is digital, then I'm more likely to give up the habit and forget about it. If there a photos I want to include, I'll print them off and stick 'em in the diary.
For example, yesterday I wrote down some notes related to an eBook I'm reading, and then just added a general summary of how I thought the day went (it was fairly unremarkable). However on New Year's Day, I had something on my mind so I just wrote and wrote my thoughts on to the paper.
I'll be using only paper, nothing digital. I feel like if it is digital, then I'm more likely to give up the habit and forget about it. If there a photos I want to include, I'll print them off and stick 'em in the diary.