I have some Retrospec Pedal Straps.
Don't quite have the hang of getting my feet into them (they don't stay open very well yet,,,breaking them in).
I keep ending up riding only strapped in on my right foot with my left foot riding the back of the pedal

For street riding stop and go traffic wearing reasonable shoes (usually Merrell minimalist shoes) is there anything else I should look at?
I wear a size 12.5 and will occasionally ride in "Blunnies" or Combat Boots.
Miniclips?

I am aware of Holdfast, Pedalbelts, Powergrips...
I'm not SUPER concerned about weight.
This is for a fun/errand bike and just want the benefits of some kind of retention that is way to get in and out of without going clipless.
The stock pedals on my bike aren't great.
Am looking at MKS or Powergrip pedals with their retention already on them.

Thanks