What is a good (simple) method for resizing photos so they can be posted here?
Thanks for any help.

https://www.adobe.com/express/feature/image/resize

An account is required (simple email and password), but Adobe offers this free online resizing tool. Other free services may plaster their watermark all over, or steal your file for their own use.

I use "Paint", which comes automatically on PC's. The controls are in the "Image" menu box. I crop the photo to remove what is unneeded, then resize what remains to 1,000 pixels maximum, then "save as", making sure that it is saved as a jpeg. Easy.

Thank you fellas. I did have an Adobe photo kit on an older computer.

Irfanview is one I use for quick edits rather than using firing up Photoshop which is great for heavy lifting. https://www.irfanview.com/. It's pretty easy to crop, physically resize and downscale the DPI. You'll get the best results for uploading to the web at 72dpi for JPG images. Keep your file size under 350k for RYPN if I recall correctly.

Faststone Photo Resizer.

Another vote for Irfanview

If you have an Apple computer with Preview, Control click the .jpeg and select Open With, open the .jpeg with Preview, go to the Tools menu in Preview, and select Adjust Size. Or you can open Preview first, go to File, and select Open and you will get a window of files to select from. Click on the .jpeg you want to resize to select it and then hit Open on the lower right of the window to open it and proceed to the Tools menu as before.

The low tech way is to use the resizing feature in Mail. Just email yourself a copy of the .jpeg and resize it to the size (small, medium, or large) that gives you the file size you need.

Thanks again for all the help.