| Answer | Crossword Clue |
|---|---|
| KITTYLITTER | Filler for Tabby's box |
| SAND | Box filler |
| INDEXCARDS | Recipe box filler |
| ALMS | Poor-box filler |
| SPAM | In-box filler |
| In-box filler | |
| SAND | Tot's box-filler |
| LITTER | Cat box filler |
| ALMS | Poor box filler |
| MEMOS | In-box filler |
| CATLITTER | Kitty box filler |
| RECIPES | File box filler |
| SPAM | In-box filler, perhaps |
| RESUMES | Hirer's in-box filler |
| USMAIL | P.O. box filler |
| SPAM | Unwanted in-box filler |
| LTRS | P.O. box filler |
| On-line box-filler | |
| SPAM | E-mail in-box filler |
| MSS | Ed.'s in-box filler |
