To be honest, even after a billion farming runs I often times forget something totally obvious... like my hatchet. I always forget the bloody hatchet. Haha, I'll admit that's not a foreign feeling for me either! Something I've found helpful is not to memorize which items to bring, but instead how many you bring (and don't organize your inventory, just have the items fill up your inventory normally as you withdraw them). If you notice you have too few items, you know something's missing, and at that point I look at my farming tab and usually remember what it is within seconds. And you don't even need to count the items, you can tell by the position the last item in your inventory occupies. For example, I know that for my herb runs, if my 3rd row, first item slot isn't occupied, I'm forgetting something. Probably those blasted juju farming potions.