Raizer wrote in post #8646639
When I do process I use Lightroom 2 then paint.net (I have got CS4, but I find paint.net easier to use)
And I have been using the power toys for windows Vista clone to resize.
I have got IrfanView, I just didnt realize you can resize with it -I got it to view .GIFs on vista
So, it sounds like you are shooting jpeg, importing into Lightroom, doing some processing, then sending them to Paint and/or other tools to do certain things.
I'm curious -- what do you use Paint for that Lightroom doesn't do? And, why not use the Lightroom resizing Export tool?
I'm one for simplicity and not overburdening myself with too many version files of one image, so most of what I do is in Lightroom until I need a specific file for a specific use, such as the Web or passing off to others. At that point I have a "viewing" size in Export which is tailored to the Web with a quality setting that keeps the file size down. Amazingly enough, that size is adapted from the POTN rules, and suits me well for both general Web display as well as passing off to others for whatever reason.
Two pitfalls when using a lot of "tools" with jpegs:
First, if you keep the image in the jpeg format, every time you save a file from one of the tools, it re-compresses the jpeg. Unless you shoot in Large/Fine and save in the highest quality settings in each of your tools you can relatively quickly start to see jpeg compression artifacts and pixelisation.
Second, every file you send out of Lightroom for external processing becomes a copy of your original -- that's good for keeping the original intact, but becomes to me at least burdonesome to maintain multiple copies of one file.
If you are shooting jpegs the best way of ensuring quality is to Export from Lightroom as a tiff, so each tool will not re-compress it jpeg-style. The problem of duplicate versions still exists, though, with the added problem that tiff file sizes are large. So then file size comes into play for both storage and program performance.