Since you can do each of those 5 things in one go, they are Next Actions. So, you have 5 Next Actions with a due by date <insert last day of the given week>.
Originally Posted by innovyse
In the raw plain vanilla paleo GTD system, the intended tool for these kind of things is the tickler file. Do you have a tickler file (digital can be ok, too, but do you have a tickler file?)? No?
If yes, put a checklist with the 5 things on it in the tickler file for <insert last day of the given week>. That way it pops out at the end of the week and you can re-enter the 5 NAs.