Schlep around

Hi, can you help me with this expression? I don't quite understand what the writer conveys by saying it:

We were the beneficiaries of eight decades of astonishing technological change, and we subconsciously thought it would continue. But a long wave of improvement in everyday life came to an end in the 1970s. Look around your home; you will not see a significant labor-saving device invented since the 1960s. Nothing has happened since then to make feeding the kids, washing their clothes or cleaning the home easier. Think about the time you spend schlepping around; note that New Yorkers travel in the same way and at much the same speed as they did in the 1930s.

Thank you!