I got a cheque from my last gig on monday, anyway, i came home and put the cheque on my desk and had a nap, now i cant find it

so basicly im f*cked for the month unless i find it, and i wont be getting another cheque for that gig,

i have turned the living room upside down, and its not there, so either the kids moved it,
dogs ate it,
or its vanished.

FFS

any tips on finding lost things? i just been tidying up eveything and binning shiz as i go along.