The single most powerful tool I've found for winning in the daily games (Pick-3 & Pick-4) is the Law of Averages: The following is for illustrative purposes only. I pulled these numbers out of my... uh... These numbers are made up and do not represent any actual drawings.
0.....0...............................................
1X...1....................................1.........
................2..............2...........2..........
...3...........3X............3.................3.....
...4......................4................4...........
5.....5..................5...5.................5.......
......................6.....................6.............
...7............7........7X............................
.......8.............8X.................................
...9.................9........9.................9X.....
This works very well for box bets in the Pick-3 & 4 games but, for reasons which will become obvious shortly, it will not work for straight bets.
As you track your game's history, list your numbers vertically, from lowest to highest, as shown above. The illustration represents a Pick-4 game, so the first number drawn, read vertically, was 0115 (the "X" represents a repeat digit in the next position). The second number was 3479, then 0158, 2337, 6889, 4577, 2359, 1246 and 3599. Carrry this out for at least 50 draws, but 90 or 180 is better (this will enable you to see any trends or patterns that tend to repeat over time). Once you have this, break it down further by position. Position 1 will always be the lowest number drawn, and Position 4 will always be the highest.
Now let's look at the nine drawings we've tracked, beginning with (Pos.1): "0" has hit twice; "1" has hit once; "2" has hit twice; "3" has hit twice; "4" has hit once, and "6" has hit once. For (Pos. 2): "1" has hit twice; "2" has hit once; "3" has hit twice; "4" has hit once; "5" has hit twice, and "8" has hit once. You get the idea. Once you have your history, you'll notice that the frequency breaks down like this: In (Pos. 1), 0, 1, 2, 3 and 4 hit most often; in (Pos. 2), 0, 1, 2, 3, 4 and 5 hit most often; in (Pos. 3), 4, 5, 6, 7 and 8 hit most often, and in (Pos. 4), 6, 7, 8 and 9 hit most often. The numbers 6, 7, 8 and 9 very seldom hit in Pos 1, and the same is true of the numbers 0, 1, 2, 3 and 4 in the last position. *I didn't say these numbers NEVER hit in these positions.* If the frequency in your game proves to be different, simply adjust your chart. Over time, you'll begin to notice "holes" for certain digits in each position. You have to be patient and wait for your opportunity. In the example above, "0" would be a viable candidate to play in Pos. 1 since it hasn't been drawn in six days. "5" would also be a good number for Pos. 1, since it's hot and hasn't been drawn in that position for a while. "6" is a very good choice for the second or third positions, or possibly a double if "66" hasn't been drawn for a long time.
Using this method, most of the time you'll be able to "fix" the P1 & P4 numbers, and you'll have the P2 & P3 numbers narrowed down to one or two choices. Again, you have to be patient and wait for the right time to strike. The Law of Averages says that, over time, all digits must come up an equal number of times in each position, so we know that the only way for "9" to appear in Pos. 1 is if a quad is drawn (9999). The same applies to "0" in Pos. 4.
Keep a separate chart for your doubles (00, 11, 22, etc.). Your game should have a double appear (in a Pick-4 game) at least once every two or three days, on average.
I know it seems like a lot of paperwork but, once you have your game's history laid out, it only takes about 15 minutes a day to keep it updated. It allows you to turn the tables on your state's game (except in Indiana), since you no longer have to select numbers that you think might come up. Instead, you're eliminating digits that probably won't hit, thus narrowing the field to only four or five likely digits.
Personally, I don't put much faith in playing birthdays, anniversaries or any other significant dates, simply because I don't believe that the ping-pong balls (or random number generators) know what day it is. But who knows? It happened in New York on 9/11/02.
Hope this helps.