Jack-alls are great tools. Every farm and acreage has one or two around, for good reason. With a couple of jacks and a 6' prybar you can move just about anything, even when working by yourself. (Though if you have access to a front-end loader, your jacks will gather dust.)

I was given a Chinese knock-off version for Christmas. It will probably do the light jobs I need it for, but I don't know how far I'd trust it.