I use Alkaline for some devices and for certain applications, however I typically use NiMh rechargeable for most of my stuff. I have a batch rated 2250 mAh up to a batch of 2750 mAh rated. When I buy a batch, I write the month/Year (i.e. 2/05 (Feb/2005))on each to help me remember how long ago I got them. Smart chargers are best. There is some good reading on-line regards to batteries and chargers. I also have a couple chargers that plug into a vehicle cigarette lighter plug, but haven't had a need for trying them yet.
For my devices where I use the Alkaline (clocks, remotes, radios, spares to carry, kids devices, etc), I have bulk packs I purchase from either Costco (Kirkland) or Fry's Electronic -100-pk which I'll nab a couple packs when on sale.
Also have a mini size tester that's LED indicated. It seems to put just enough of a light load on a cell and indicates a status. A digital meter can be used, but once a light load is applied, a bad cell can drop in voltage more that the other cells in the pack. I figure the pack is only as good as the weakest. Only had a couple times that something wasn't right and all it takes is one bad cell that can induce a headache.
I think back when I had one of my grand daughters I was taking care of for a few years, between her, her friends, and all the gadgets kids have, buying a couple 100-pk of alkaline batteries went fast. All the kids knew I was the local battery supplier. And would always get a couple extra packs for around x-mas time not only for the locals, but for the devices I send to my 4 other grand daughters. Gee-Whiz...... I'd do anything to keep the kids from getting their paws on my rechargeable stash after one day I found about 2 dozen of them missing. Just thinking about it is beginning to induce a headache - gotta go 4 sum coffee