Blah...the Bag of Holding is the oldest trick in the book.
While they're certainly very cool, it's really a cheap plot device used by lazy DMs and uncreative players to avoid dealing with the inevitable impossible reality of:
Where the hell am I carrying 19 scrolls, 10 flasks of Holy Water, lockpicking tools, 2 Potions of Cure Lt. Wounds, a heavy crossbow, 4 torches, a bedroll, and a 1 gallon jug of mead? Let alone the bag of caltrops, a fine silk rope, and what could easily amount to 47 pounds of gold and silver coinage.
And how is it that all those potion bottles and flasks aren't destroyed every time you're bull-rushed by a Bugbear?
Good to hear from you Michael, happy travels.