ETCS

And so on and so forth

• Abbreviated add-ons

• Customary extras (abbr.)

• Customary extras, briefly

• List enders (abbr.)

• List enders hidden in this puzzle's theme entries

• List ending abbrs.

• List-ending abbrevs.

• Relatives of et al.

• Rels. of et al.

• Series conclusions (abbr.)

• Series enders (abbr.)

• Series finales?: Abbr.

• Sundries, for short

• Truncation indications: Abbr.