I was curious what VFP add-ons you feel is indespensable? Any case tools, librarys, classes, frameworks, etc. that you think makes development considerably easier.

I haven't used very many add-ons, but one that I've looked at that I think is great is the StoneField Database toolkit. It has nice features that should have been in the DBC in the first place. Alos, I learned a lot from the Codebook framework. It might be a bit topheavy for small apps, but for mid-sized apps it's great.