I suggest you take ten minutes at the start of the day and extract a day-list of things you think will fit within your "hard landscape" of that day.
Put the list on a post-it or on a small sheet you can easily carry with you. If you use a PDA, assigning things into a day-context can work.
Check them off during the day and dump the checked off list into your inbox at the end of the day. You could probably just accumulate day-lists and check them all off during your weekly review.