Thanks for the input, after some of the other responses I decided to go with something similar for UI controls.

>We use a schema like so, this is basically a hungarian notation.
>
>ani Animation button
>bed Pen Bedit
>cbo Combobox and dropdown Listbox
>chk Checkbox
>clp Picture Clip
>cmd Command Button
>com Communications
>ctr Control (Used within procs when the specific type is unknown)
>db ODBC Database
>dir Dir List Box
>dlg Visual Basic Pro Common Dialog
>drv Drive List Box
>ds ODBC Dynaset
>fil File List Box
>frm Form
>fra Frame
>gau Gauge
>gpb Group Push Button
>grd Grid
>hed Pen Hedit
>hsb Horizontal Scroll Bar
>img Image
>ink Pen Ink
>key Keyboard key status
>lbl Label
>lin Line
>lst Listbox
>mpm MAPI Message
>mps MAPI Session
>mci MCI
>mnu Menu
>opt Option Button
>ole Ole Client
>pic Picture
>pnl 3d Panel
>shp Shape
>spn Spin Control
>txt Text/Edit Box
>tmr Timer
>vsb Vertical Scroll Bar