Once I get my stuff on the white 12 x 12s I look at samples I've put aside of pages I really like and that helps nudge me a bit. As soon as one of them really gets my attention I get on it.
For journaling, it helps to do that when the event happens. On cruise ships I journal for 10 or 15 minutes every night.
THen when I look at my journling for the day I'm trying to scrap things jump out at me too.
I never trust myself to remember back a few months for the small details.