Mine has been...Um...Air purifiers <img src="/ubbthreads/images/graemlins/blush.gif" alt="" /> . IQAir, Blueair, Plasmacluster, Steril-Aire...Eating away at my ability to purchase new knives I have come across on the market (thanks to Rainwalker for the pointers <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />). I am not allergic to common household allergens (according to both skin prick and blood tests), do not suffer from MCS, just wanted to see if I could improve my quality of city life living. Bought tens of pounds of activated carbon to toss around the house as well. Only real improvement I have noticed has been less dust on my keyboard over the past few weeks. Aside from family committments, what hobbies have been dwindling your knife fund?