I couldn't think of one the first time I read the thread but I just remembered one.
The rear pockets on my hiking pants are nice and deep and used to have velcro closures. This presented a problem since its no secret that velcro and wool don't get along too well. I removed the velcro and the usability of the pockets increased significantly. Now I can easily stash a map, my wool beanie, liner gloves, or any other item I might want easy access to in them. I'm much happier with the pants now, it just took me a few years to figure out how to make them just right.
I've been considering changing my Conduit from a roll-top closure to a simple drawstring. I'm not a big fan of the roll-top and the conversion would be another trivial thing that would likely increase my satisfaction quite a bit. One of these days I'll get on a sewing kick and knock it out but for now it will remain stock.