Your "pants hamster" comment really got me. It rings true, as well.
I once had my jeans geared up just fine. The sturdy cotton held everything without sagging. Then we had to go to a slightly formal affair, where dressier trousers were called for.
Once I had on my better-looking Dockers, holy cow, talk about sag! Omigod, every pocket bulged, my dress belt bit into my hips, and the Pants Hamster was born. I had to seriously offload things and carry a shoulder bag I have.
You are right on target with the Daytimer idea. I know this because I have read on different forums about how office workers can be prepared without attracting attention. Now I'm casting about for the right one for me.