21.   Single supplements apply.

22.   Single supplements, like taxes or cold sores, are always unwelcome.

23.   Solo travelers do not pay a single supplement, but all accommodations are based on twin shares.

24.   Some cruise lines have single cabins, which fetch a price above the double-occupancy price but less than the double with single supplement.

25.   Single occupancy is allowed, but usually for the infamous single supplement.

26.   The cruise single supplement is probably the biggest bane of single travelers.

27.   The single supplement will be waived on a special Kenya Safari offered by African Travel Inc.

28.   The single supplement is not immutable.

29.   There is no single supplement.

30.   There is no mandatory single supplement for travelers willing to share.