A simple A4 piece of paper:

     +-------------+-------------+-------------+
     |         Mon.|         Thu.|         Todo|
     |             |             |             |
     |             |             |             |
     +-------------+-------------+             |
     |         Tue.|         Fri.|             |
     |             |             |             |
     |             |             |             |
     +-------------+-------------+             |
     |         Wen.|         Sat.|             |
     |             +-------------+             |
     |             |         Sun.|             |
     +-------------+-------------+-------------+

Every week a new piece of paper, the main todo list of the week on the right, I push the items on each specific day, I put the calls/family stuff I have on each day. I use the paper from the previous week to start the week. I have a stupidly simple LibreOffice template I print every week.

My "master" Todo list in a simple text file.