| 100% | SOMETIMESY | 10 | Addendum to a common pentad |
| 56% | DIARYSUPPLEMENT | 15 | Addendum to a log? |
| 55% | SOLD | 4 | Addendum to a real estate sign |
| 54% | PPPS | 4 | Third addendum to a letter |
| 54% | UNITE | 5 | Rally to a common cause |
| 53% | PPS | 3 | Second addendum to a letter: Abbr. |
| 53% | NOTHINGPERSONAL | 15 | Dubious addendum to a snide remark |
| 52% | PPS | 3 | Second addendum to a letter, for short |
| 52% | ACETONIC | 8 | Related to a common nail polish remover |
| 50% | EVA | 3 | Name that reverses to a common street-sign abbreviation |
| 50% | BROTHER | 7 | A common term applied to Christian monks |
| 48% | LAUGHTER | 8 | A common response to a stand-up comedy routine |
| 47% | SLOT | 4 | Common place to put a card |
| 46% | PUNINTENDED | 11 | Addendum to a statement such as “My violin teacher was instrumental in getting me into Juilliard” |
| 46% | DAWN | 4 | Common time to start on a trip |
| 46% | THREEDAYWEEKEND | 15 | Common thing to plan a vacation around |
| 46% | DEAR | 4 | Common word to start a letter with |
| 46% | NEONTETRA | 9 | Common addition to a tank |
| 45% | RESET | 5 | Common way to attempt to fix a computer |
| 45% | AIRINESS | 8 | Common to an open room and a snob |
| 45% | LAH | 3 | Common Singaporean slang used to complement a sentence |
| 45% | LISP | 4 | Common reason to see a speech-language pathologist |
| 45% | SOFA | 4 | Common place to find a lost TV remote |
| 45% | PPS | 3 | Second addendum to a letter ... and a hint to 18-, 34-, 44- and 62-across |
| 45% | ABUT | 4 | To have a common boundary with |
| 44% | COM | 3 | Common domain name in a URL, similar to ".net" |
| 44% | ABOUT | 5 | Common heading to click on a corporate web site |
| 44% | DELI | 4 | Common place to purchase a Dr. Brown's soda |
| 44% | DOIHAVETO | 9 | Common reply to a parent's demand |
| 44% | TOGA | 4 | Common attire to a themed frat party |