My character often has to make spot checks for various purposes, so I am considering trying to help myself with some magic tool to improve my spot checks.

But after a quick research in D&Dtools and in the [x stat to y bonus guide](http://www.giantitp.com/forums/showthread.php?125732-3-x-X-stat-to-Y-bonus), the only relevant item I found was [Hawk's Ointment](http://dndtools.eu/items/complete-adventurer--54/hawks-ointment--347/). I was expecting something better like some googles or lens or some lantern, or some generic tool giving bonuses on all wisdom related abilities, but did not found anything of these. 

Any suggestion?