First off Excel Helper, Thank You for such a quick response! I'm quite impressed.
I think out of your 3 suggestions, option 3 might be the most applicable. Partly because I'm hoping such code could manipulate the dates among the various URL structures I'm dealing with.
Here are the 5 URL types I'm working with - hopefully you know of a way to execute one function or macro that will run on a spreadsheet with hundreds of such URLs. [In these examples I'd want to take the dates of the 13th and 14th and increment them by a day. For my 2nd need of pulling info for "tomorrow" then perhaps this is a function I can just apply twice to a second Sheet of these links.]