Do you have any cool tips to pass on to us that will save us money, time, or future troubles, etc?

One cool thing that I do is when I get a prescription from my pharmacy, if it's a medication that I don't have to take the day I get it (i. e. antibiotics, blood pressure medicine if your b/p is very high, etc.) I wait 4-5 days and then I start taking it.
The reason is that these are reserve pills for "just in case purposes."
My doctor called in a higher dose of one of my prescriptions 4 days ago and my well-known huge pharmacy was out of stock and they said they will call me when they get their shipment. This was my blood pressure medicine AND THEY ARE OUT OF STOCK!! That was 4 days ago and I still don't have my new prescription.
Luckily I still have a small supply of my lower dose blood pressure medicine so I am not completely out.
Also, if you aren't able to get to the pharmacy THAT day, you will still have some medication. This is for refills. Save some from the first time you get the prescription so you'll have some"just in case" pills.
Do you have any cool tips to pass on to us that will save us money, time, or future troubles, etc?
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