Free pattern and tutorial to make a stroller-friendly diaper bag! Converts from a messenger bag to a stroller bag with just a few snaps and has 12 pockets to keep you organized. Bet it would be useful for wheelchairs and walkers too.
Reversible Buggy Tote Bag with Arm Straps - .Reversible Buggy Tote Bag with Arm StrapsFrom TutorialGirl This is reversible step by step easy photo tutorial for tote buggy bag. You could use it even without buggy as ordinary tote.
A Walk In The Park Stroller Bag two elasticized side pockets for bottles or sippy cups, a loop for your key ring or a pacifier, two front pockets for snacks and toys, and a large inner pocket for everything else! Check out the instructional video.