***Disclaimer - I am not at goal*** (yet...)
My understanding from my hubby, who attends a clinic for IP, is that you aren't required to have ANY restricted items. But, if you do only have one. You are perfectly fine to have two IP alternatives per day that are unrestricted. But, keep in mind you can have 1 restricted and 1 unrestricted...that's typically what my days look like.
The snack is important if you are exercising at all. But, I am only doing light walking at this point and I have skipped my snack from time to time.
I am much like you, very little variety but, it works for my busy work life.
"Failing to plan = Planning to fail!"