I have found a bug that is involved with sacks and it needs to be fixed before people can use it succesfuly. It involves how the weight in your inventory is calculated.
This is how the bug works:
If you open the sack, and drag an item from your inventory to the sack inventory WHILE the sack is still in your inventory, the weight calculation system thinks that you are taking the item out of your inventory, thus it reduces the weight. You can do this with up to 12 items in a sack. So you can practically carry infinite items without the weight going down.
These are things that reset the weight in your inventory:
If you move a sack using the bug, the weight will reset according to how much weight that is in the sack.
Whenever items are equipped/unequipped, the weight will sometimes recalculate
If you try to trade the sack with items, and if the other person declines, the sack will either be dropped, or it will go back to your inventory adding weight.
WHY it works:
Whenever something is moved outside of the MAIN inventory, the calculator thinks that you are taking out weight, when in fact you are actually putting it into a sack which is already in your inventory. but the calculator does not know that the sack is in your inventory. This is why you have to open (right-click) the sack before trying to put items in.
WHY you shouldnt use it:
1. It is clearly against the rules and is obvious when you are using it.
2. You can lose your items
3. You may be 'stuck' with the items and you wont be able to trade, equip, or do anything with your items except drop them
4. You WILL get banned for using it. (I think)
