The last 4 hits in California as of August 31, 2013 are 292, 550, 955, 523. 

Thats 3 consecutive doubles, so thats good.

Now check this out. 

Lets just look at the last two doubles: 292, 550.  

292 can be represented as 22–9 (all middle digits missing: 3456)

550 can be represented as 0–55 (mostly middle digits missing: 3456) 

Strategy 1: Remove the 5 because it hit on 550 and 955; so you have middle digits 346. Enter 346 on the Digit Playlist 80 program at pick3programs.com. It gives me this:  

Digit Playlist 80 

List 346:
036 037 038 039 046 047 048 049 056 067 068 069 136 137 138 139 145 146 147 148 149 156 167 168 169 235 236 237 238 239 245 246 247 248 249 256 267 268 269 346 347 348 349 356 357 358 359 367 368 369 378 457 458 459 467 468 (56) 

I bet you one of these numbers will hit soon in CA. The best part is that it only costs $14 to play them box at 5dimes at 0.25 cents each. 

Strategy 2: Play the 40 Power Numbers, in which case its just $10 to play all 40 numbers. 

The Power Numbers
028 029 056 057 058 059 127 128 129 145
156 157 158 159 235 236 237 238 239 245
246 247 248 249 256 257 258 259 267 268
269 278 279 356 357 358 359 457 458 459