This is what I bring everyday to office. One towel, 1 plastic bag and some pads (above)
I also bring a lunch box, it's a Tupperware.
Sorry, I forgot to rotate the pic!
Together, they look like this.
While it's true that I do more effort to bring this everyday, actually I could just leave the Tupperware in office. But hey, they're Tupperware, it'd get lost if I leave them!!!