I really like the MKors bag! but all are good -- perhaps you could find something similar at a lower price point. The Fossil bag looks great but would be better if it was a solid for everyday use.
My criteria for bags:
- uber-practical -- hands-free as much as possible, fits a lot of stuff (especially binder or laptop if possible), large strap to fit over heavier winter coats
- well-organized but simple design (some, not a lot of pockets internally, few outer details)
- more structured or semi-structured (the "stand up" factor)
- great color that goes with my wardrobe (1 reason why I want to redye the cognac 1 navy)
I now have 4 bags -- 2 that I have acquired recently on ebay for relatively cheap:
- cognac leather Roots tote -- could fit a 1/2" binder or small laptop in it (I think I want to redye it navy though, b/c it's looking a little worn)
- red Coach messenger crossbody (new to me, on ebay) -- similar size to tote
- olive Danier hobo -- fits a lot of stuff in it
- espresso brown Fossil crossbody (new to me, on ebay) -- my relatively smaller bag, when I don't want a bigger bag with me (going out, etc.).
With water bottles leaking /sweating and leather -- I have a great Camelback water bottle that I bought a few years ago (and haven't lost yet like I usually do), that doesn't leak or sweat in hotter weather, so no problem in a leather bag. You can get them at outdoor gear stores.
It sounds like you know what you want in a bag, so now you just have to shop around to get ideas. It does sound like you want a crossbody as opposed to a tote or hobo, so consider this as an important detail. I'll shop around too and see if I find anything.