The simpler of Keurig's two specialty beverage brewers, the K-Latte is a compact, entry-level way to enjoy both coffees and lattes from the comfort of your own home. (And without paying the Starbucks tax.)
Keurig's most basic office model, the UL Commercial listed B145 has an underwhelming 48 oz reservoir and max 10 oz brew size, but the Drain Brewer function is handy and its sturdy build makes it great for heavy use.
The super-slim successor to the K10/K15, the Keurig K-Mini is just 4.5" wide and brews 6-10 oz with its "fill before each use" reservoir. If you want fancy features, look elsewhere. If you want compact coffee, look here.