Amazon offers Prime members the Black and Decker 20-volt Lithium Ion Cordless Handheld Vacuum, model no. BDH2000SLB, for $44.99 with free shipping. (Jet.com charges the same. Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $6.87.) That's the lowest total price we could find by $3. It features a washable filter and bowl, brush and crevice tools. It runs on a 20-volt battery (not included).