Jacks

I don't carry a spare tire or a Jack in my project cars because of the big and little sizes and spools etc. But I do have one in my car trailer its simular to this.
https://www.amazon.com/gp/product/B009SX8494/?tag=joeychgo-20
Its changed tires on the trailer and I use it to warm the driveline at the strip. Small light and compact.