Great idea!
I keep my iron plugged in on a lighted power strip. I check it before leaving the house and also at night.
Check your current extinguishers as there was a recall on many of them. I had 5 on recall and replaced at no charge. The old ones are sent back to company at no charge to you.
PS: Don't forget to check the smoke alarm batteries or installations. I put a label with date on ours so it's easy to check.