Have you tried the new "low discharge" NiMH batteries yet? All the pluses
of NiMH cells, without the problem of rapid self discharge. I've been
running a pair in my cordless mouse for over a month now, and the software
reports they still have a 98% charge. Never got more than a week or two
from the old style NiMH cells. Only downside is that the maximum capacity
is 2100 mAh for now.

I haven't, I should pick some up for the flashlights though, the clocks and
receiver remote can stick with alkalines, I'd get carbon zincs for those if
I could find them anymore, they don't tend to leak.

I finally modified all my digital clocks with 9V batteries to use NiCds and
charge them, all it takes is adding a resistor across the isolation diode.
Those stupid things were dead every time I needed them until I did that. I
added a warning label to the back just in case they end up in someone else's
hands.