When Writing is Not Your Thing, Make a Scrapbook
Going to Japan? Or Europe? Theme your scrapbook likewise. Design your cover page. Find colors peculiar to that specific country. Make special sections in your scrapbook for different things. Stick envelopes inside to store your souvenirs until you stick them.
Collect souvenirs such as travel tickets, business cards, small paper menus from restaurants, bars, cut-offs from the local newspaper, etc., and stick them in the scrapbook. Incorporate the souvenirs into the design of the scrapbook.
You can caption them. Write something about the photos and what they are all about. While you are it, if you make a new friend, click his photo too, and take down his contact details to write along with the photo.
Create a page with only the photos that you've clicked. Create a front page of the journal with extra photos or souvenirs which you don't want to part with.
Write what you did all day, and how you felt. Record them as they happen, like a personal diary! But don't go on writing minute-to-minute details of what you did. No chatting up with the locals can be extremely informative.