Even though ammo is scarce, it doesn't seem THAT hard to find. I live in Southern California and ammo is picked clean off the shelves at large retailers like Bass Pro and such, but if you go to a local hole in the wall gun shop, they will simply tell you when the next shipment comes in. I just do that, and then pick out whatever I feel like shooting or stocking up on.
The other day, I got lucky and found a Rem Bucket O bullets at the local Big 5. Granted it was $80 for 1400 rounds and they don't even feed properly into my Savage 64.
At this rate, I'll never run out of .22 LOL