Your idea of keeping them on paper could also be good for keeping records of when something was done (if you can still read it under the red lines). That can be really handy sometimes.

Sometimes I do things just so that I can check them off too.

I also like to use white boards, it feels just as good to wipe them off and create some new white space.

And it’s fun to write on them in colours.

The only glitch is when someone else wipes them off when they aren’t supposed to. Oops!