Counting ammunition, unless it's a very unusual situation is just one of the many, many things I just let slide. Like ... every time a character ends up in the water I don't worry about what just got wet. Is there food still okay? When are they going to strip off their armor, clean and oil it so it doesn't rust and the leather straps are maintained? What, you don't have the kit to do so in your inventory? Guess you're getting rusty, oh and without proper oiling you'll need to replace those boots soon as well. Don't forget to sharpen ... wait ... you don't have a whetstone either? Don't get me started on the spell book and all the scrolls a wizard is carrying.
I wouldn't know where to start (or end for that matter) with making things more realistic. So yeah, I treat D&D like an action movie where you loosely keep track of gear and you have the weapon but in almost all cases you always have ammo, you don't need to worry about jungle rot or normal equipment maintenance. For that matter I no longer track living expenses as long as everyone is okay with standard level of living and can describe what they do during downtime. It's just not worth the overhead and bookkeeping required and I would only ever cover a tiny fraction of what I "should" take into consideration because I have no clue.
I wouldn't know where to start (or end for that matter) with making things more realistic. So yeah, I treat D&D like an action movie where you loosely keep track of gear and you have the weapon but in almost all cases you always have ammo, you don't need to worry about jungle rot or normal equipment maintenance. For that matter I no longer track living expenses as long as everyone is okay with standard level of living and can describe what they do during downtime. It's just not worth the overhead and bookkeeping required and I would only ever cover a tiny fraction of what I "should" take into consideration because I have no clue.