I guess I didn't state clearly what I meant. I won't worry about the empty or nearly empty magazine during the actual shooting event. I'd rather reload as fast as possible and get my weapon back into operation than spend the extra one or more seconds manually removing the magazine with my weak hand, shoving it into a pocket, then drawing my spare mag and continually reloading.
When I release the mag in the weapon, I flick my wrist so the empty flies out of the way and lands a couple feet to my right.
If I lose the empty mag because I have to evacuate the area in chaos, then so be it. It's empty, and I have more at home, and possibly in my vehicle as well. If I can recover the magazine after the fact, then so be it. If I'm dead or wounded, then I have bigger concerns than an empty magazine.
ETA: After reading this thread last night I spent about 20 minutes practicing reloads with my Glock 34, and they are getting smoother and smoother.