Prefixes!

So, I have decided that memorizing prefixes is extremely difficult. I feel as though I may as well be memorizing poetry. I have sat here in this very spot with my notebook and pen going through my parent's basement dispursing items whose purposes seem to be forgotten as soon as I set them down. It is quite tricky trying to associate "Ob" with "blocking" and some sort of memorable furnature along with it. But, I must say, with out the memory theatre situation, I would have been a goner at ten words. Maybe there is a trick for each type of word to be memorized...? I hope to have this figured out by the end of the semester. But for now, I am enjoying the challenge of my newly discovered memory.