A simple but useful feature for data visualization in plots is to format the axes accoring to the units of the attributes you are working with, which could just be metric units, currency units or similar.
Using the public cycling data made available by TfL, I show the monthly cycling usage for the first five months of 2019 and 2020, which displays the change in cycling habits before and during the COVID lockdown.
This interesting project in exploratory data analysis shows the bicycle usage by London city residents for 2019, using data that is freely available for public consumption on the TfL web site.