Just to clarify about /bonus

so can i PERMANENTLY throw lets say darksteel longbow inside the bin and then get it again with the /bonus button?

Yes you can.

Yep. If you want to test it, put that Darksteel Longbow on a hero and kick the hero out of your party, then type /bonus again. You'll get another Darksteel Longbow

well thats kind of different than putting it in the bin

yep, you can use /bonus to spam the stuff as many time as you like, but not if you already have 1 in the bag.

k thanks, I really need to clear up my inventory

Just as a side note, if you mod the bow, etc then trash the item, you will NOT get the mod back when you type /bonus.

Actually you can have more then one at one time too (hero use only).
/Bonus, get items, Equip on hero of choice, do /bonus again, etc.

if you type /bonusitems it will give you a rundown of the bonus items you have unlocked on your account. In that rundown, that you will see in the chat panel, it will tell you what items can NOT be created anytime you want, all otherones can be.

Example of bonus items that are one time only include the Mini Asura, Gray Giant, and the Factions/Nightfall CE minis.

Hehe. I now have all my caster heroes on every char (except the ones that I got a nice green/gold staff for) toting Hourglass Staffs thanks to that trick

as other people have said, yes you can create it as many times as needed.