Use a reward: Have someone, other than you get paid to find it. How much is it worth to you? Years ago I did this with my kids when I couldn't find my keys.

I got the idea from a friend who paid a friends wife to find his keys (they were up under the visor on the driver's side, a fast $30 for her!)

haasman

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'03 E320 Wagon-Sold
'95 E320 Wagon-Went to Ex
'93 190E 2.6-Wrecked
'91 300E-Went to Ex
'65 911 Coupe (#302580)