I have a situation where I can't go into a particular area unless I remove my shoes.

Taking off and then putting my shoes back on takes about as much time as I'm spending in that room.

These are fantastic for situations like this- you step into these overshoes, the little rubber nubs 'trap' my shoe- doesn't even hurt nice leather, then when I'm done, the heels have a lip on them- step on the lip, then you're out of the overshoes.

Better than expected.

You probably want to buy them a little larger than you'd think. I ordered by their charts, and should have gotten a size bigger to fit various shoes that run a little larger than the chart would imply.