Dyson via eBay takes an extra 20% off a selection of new and refurbished Dyson vacuums, fans, and more via coupon code "JOYOFDYSON". (A $50 maximum discount applies.) Plus, all these orders receive free shipping. Deal ends December 12. A couple of best bets:
Refurb Dyson Ball Animal 2 Upright Vacuum for $199.99 (pictured, $100 less than new)
refurb Dyson V8 Absolute Cordless Vacuum for $247.99 ($82 less than new)
Note: Refurbished items are covered by a 12-month Dyson warranty. Also, this code can only be used once per account.
With these companies, it might be easier than you think to negotiate your monthly bill down.