I can't belive I'm really contemplating this.

[ridicully]

There's stingy and there's really stingy

This places me in the latter category:

For three weeks I'll have to work in an office.
It's 15 km away from where I live.
It's easily accessible by public transport.
A ticket for these three weeks costs 79,2 €.

I'm seriously thinking about going there by bike every day.