I am going to sound like a jerk, but dont take it that way.
Do you have an additional 2 minutes after your weekly water change? Do you have 10 seconds every day?
If you have 2 minutes on your water change day fill up your weekly ferts in a monday to sunday pill box (cheap/free at most pharmacies)
If you have 10 seconds after you feed your fish every day, open up the appropriate day and dump it in.
Either way, no reason to be 100% precise with everything...remember it is an estimated dosing schedule. some weeks if i completely forget everything i only dose twice.
You most likely will get some algae if you stop dosing, how bad it will be can only be figured out over time.