when i first started i was doing mobile valeting/detailing as my main business and the carpets were intended as a side line......
on quiet days i would go out leafletting estates and offices, pubs,care homes etc etc, i also did a lot of face book adds on buy and sell type pages. I sonn started getting jobs but on fb in particular the pricing was an issue you dont ( or i didnt) get high ticket jobs!!! However things started ticking along quite well for me, started getting repeats and word of mouths etc etc, but my business really only kicked in when i started my on line presence, then it was very fast to grow, and i havent done any cars now for two years.... i only wish id started carpet cleaning earlier, best move i ever made... good luck!!!!