Every now and then, I have the impulse to dye something - currently, it's our light grey IKEA Ektorp sofa covers as I am just finding them a bit grubby and depressing after a few years of use.
My own DM and MIL always warn me off it, both of them seem to have horror stories about trying to dye things - either the dye not catching on properly, being uneven, rubbing off on clothes, or all of the above.
However, someone told me that dyes have come a long way and that modern dylon, rit, etc. ones are a huge improvement on those that DM/MIL will have used when we were growing up.
I'm aware that different dyes/methods are needed depending on material etc. - what's the MN wisdom on this, and any particular brands you'd recommend for sofa slipcovers?