When learning new words, I find it's better to do some repetition drills with them to get them bouncing around in your head.
A while back, I used to just keep a word notebook. I'd put down a new word I wanted to learn (any new word from a Core 2000 sentence will work). I'd write it out in Kanji, the reading, and English translation (as simple of one as possible). Then, you just run through it a few times trying to memorize the readings and meanings (remember to run through it in different orders so you're not just memorizing the word order). Then cover up the Readings and English, and run through the Kanji a few times seeing how much you can recall. I found it was best to mark my progress as I went along (a pass got a slash, a fail got nothing - 5 slashes and I finished the word). Then I'd switch to the English side, cover up the reading and the Kanji and do the same thing.
Doing this drill takes about 10 minutes and gets those words bouncing around in your head in your short term memory. Anki is great for keeping them in your long term memory.
Now, that's what I USED to do.. but now, instead, I use Anki. I make a cram deck and set the intervals really low (first interval, 12 seconds). I put in 20 words at a time and do both Recognition (which show up first) and Production cards. I run through these until the intervals are at about 30 minutes - 1 hour. Then I add 20 more words. As I'm studying these, the other words come up for review sometimes.. the randomization is great and really nails down the words quickly. Doing this, 60-80 words a day is obtainable when I want to push some more words into my mind en masse.

At the beginning of each day, I delete this cram deck (and review these words normally in my other deck that I pulled them from). It's sorta interesting to note that during these, I usually only fail 2 or 3 out of 60 or so new words I enter (120 cards, production and recognition) through all the reviews. The act of entering the cards into the SRS itself is usually enough to remember the readings.
But anyways, I think for most people waiting hours between reviews after only seeing a card once is dooming it to fail again the next time around. Anki's default SRS intervals are set to retain knowledge learned, not actually learn stuff in the first place.
One more note - I study MUCH more efficiently when I study words of the same part of speech. Like a huge set of nouns, a huge set of verbs, etc. You could download the kore spreadsheet (search "kore" on this forum) and sort it by part of speech, then study like that. I find it sssooooo much easier. Also, I find it much easier to study words that are Kunyomi based separate from words that are Onyomi based. But maybe that's just me.
Edited: 2010-06-11, 3:02 am