  We present a sensitive search for WISE W3 (12um) and W4 (22um) excesses from
warm optically thin dust around Hipparcos main sequence stars within 75pc from
the Sun. We use contemporaneously measured photometry from WISE, remove sources
of contamination, and derive and apply corrections to saturated fluxes to
attain optimal sensitivity to >10um excesses. We use data from the WISE All-Sky
Survey Catalog rather than the AllWISE release, because we find that its
saturated photometry is better behaved, allowing us to detect small excesses
even around saturated stars in WISE. Our new discoveries increase by 45% the
number of stars with warm dusty excesses and expand the number of known debris
disks (with excess at any wavelength) within 75pc by 29%. We identify 220
Hipparcos debris disk-host stars, 108 of which are new detections at any
wavelength. We present the first measurement of a 12um and/or 22um excess for
10 stars with previously known cold (50-100 K) disks. We also find five new
stars with small but significant W3 excesses, adding to the small population of
known exozodi, and we detect evidence for a W2 excess around HIP96562 (F2V),
indicative of tenuous hot (780 K) dust. As a result of our WISE study, the
number of debris disks with known 10-30um excesses within 75pc (379) has now
surpassed the number of disks with known >30um excesses (289, with 171 in
common), even if the latter have been found to have a higher occurrence rate in
unbiased samples.
