Sorry, I just noticed that maybe I shouldn't have made this thread in the "General" discussion area? The area's descriptor says, "NO SPOILERS. Discussion or links to anything BG-related that doesn't fit anywhere else here!" Maybe "Help Tips & Tricks" area is better? If moderators feel the need to move my thread, please feel free.
That said, I appreciate these replies, they are really helpful for me! Informative, but not too spoilery -- at least not for after having played it once
@Buba68 - Yeah, I agree, so easy to hoard. Regarding healing potions, though, I often didn't have enough

On the other hand, I had a ton of magic scrolls, throwables, potions, arrows, and a bunch of other stuff that were meant for battle that I never used. Not next time!
I will look into those mods! So far I have only tried "Clean Leaving" and "Weightless Gold". For the former, sometimes the chars were a little too gross looking for me in dialogues after battles. And for the latter, I didn't like having to distribute gold across characters or have it unnecessarily burden my main character.
@Anska - Agree. So many empty vases -- wasted efforts to look in. Great idea on potions, I didn't know that or did it very infrequently.
@Taril - Yeah, I'm okay with looking through everything the first playthrough. Satiates the part of me that doesn't want to leave any stone unturned, and to also make sure I had as rich of first time as I could reasonably have. But, for me, I slightly regret all that effort. I totally agree on food. I had 100x more than I needed for one night, literally. Note: One risk with sleeping after every battle is sometimes a quest will go away due to time passage or something. I think I missed a quest or two this way. I agree about gold. That's also why I installed the "Weightless Gold" mod for my next playthrough. Great point about "small openings". At times I played for them, and for the ones I didn't do I thought their existence would be cool to explore in a 2nd playthrough (incentive to play again), but I think you're right. Seems like there is usually another way in. If you play in a stealthy/sneaky way, they're nice sometimes