This is the programs and tools I use most
Can't live without a decent Text Editor. Have been using Programmers Notepad for a while. Found PSPad on Free Programming Ressources site. PSPad includes a great HEX editor.
The legendary KillNotes program is still a 'must have' - this is an easy and secure way to remove notes threads after a crash
With Sizer you can resize any window to 1024x768, 800x600 or any other resolution you want - with just one click.
Has been using Korak ColourDrop, but found a new great tool for picking a color from the screen: ColorPic
SnagIT - Capture screen shots and manipulated the picture (with borders, arrows, highlights etc). Great program - I use it all the times for documentation and brochures.
OpenSource PDFCreator easily creates PDFs from any Windows program - and with an open API you can use from Lotus Notes
Free alternative to WinZip
GIMP - free drawing tool - or the more simple paint.net
Nice screen ruler
Lotus Notes related
Lotus Notes - IBM partners can download from IBM PartnerWorld
My own Developer toolbox
Ytria. Great tools - a must have for any Notes developer. Go for the Developer Suite.