Several clipboard utilities for Windows store and paste text only.

Compare features in graphics (106K) or table (preferred) style Features Table. (Windows 3.1x)

Compare features in graphics (84K) or table (preferred) style Features Table. (Windows 95/NT only)

AccClip
Yet Another Clipboard Collector (YACC)
Clipbuffer
Eclips
Cool ClipBoard
TextClip for Win 95
Tray Clip for Win95
TrayText for Win95
QuickCopy for Win95
DMKClip for Win95
ClipboardPlus for NT/Win 95

Append text clipboard utilities.

Clipboard Extender
AccuBoard