Presented below is my personal "How'd they do?" quick reference table:
|Check vs. DC||Degree of Success||Bonus (to Whatever)|
|-11 or more||Terrible||-2|
|-6 to -10||Poor||-1|
|-1 to -5||Fail||-0|
|+20 or more||"No wai!"||+4|
Any resemblance of the above to the successes table from Savage Worlds is...probably intentional, in retrospect.
The Bonus (to Whatever) column is a general thumbnail guide to how a subsequent check (aid another, recovery from falling, etc.) will be affected by the outcome of this one. It could even be used as a bonus to damage if the initial d20 was part of an attack roll (at the moment success and damage in D&D are - critical hits aside - almost wholly dissociated).
note: found out what was causing the table problem. Blogger treats carriage returns in the HTML of tables as line breaks.