Things became more affordable.
Unknown Author/Wikimedia Commons
Unknown Author/Wikimedia Commons
Thanks in large part to the factories that sprung up around England, goods became cheaper for the average Victorian as the 19th century wore on. Imported goods also dropped in price as shipping routes (and ships themselves) became more reliable.
This was augmented by new technologies that improved living conditions for those who could afford them, like clean running water, household drains, and gas heating and lighting.