Amazon offers Prime members the Holmes Portable Desktop Heater
, model no. HFH111T-NU, for $19.99
with free shipping
. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $8.21.) That's tied with our mention from two weeks ago and the lowest total in-stock price we could find by $12. It features two heat settings and automatic safety shut-off.