We just have the big bags (usually flour, sugar, rice) lined up on the floor of our pantry, with a smaller (1-gal or so) canister or other container up on the shelf for daily use. When the canister runs out, we refill it from the bag, etc. Like Thegoblinchief, we just leave the partially-used large bag there with the top rolled over. We don't bother with the packing tape. Heck, we don't even roll over the top of the rice bag (it's plastic, and doesn't roll). We very seldom (like once in 10 years) have had an issue.
I have started saving the rectangular 1-gallon ice cream tubs from walmart. While they're not air tight, they stack very efficiently (unlike the round canisters), and we haven't had any issues with bugs.