I’ve tried to do this several times. Hopefully this time it will take.
If you use an index card as a bookmark, you can note down any mystery words to look up later. Most words are not mysterious enough to warrant a dictionary interruption (for me at least), but by now I really should know for certain what lugubrious means.
I bet if I make a chart, I’ll remember to use it. I’ll just trust my friends not to tease me when I leave that lying around.