[InterceptPoint]

Now, what happens when you need to get those last, bottom layer drops, and the uncovered ports lower the vacuum?

Really now. It's simple:

You take the straw out of the cup and turn it upside down. Grab the U-End in your mouth and stick the other end back in the cup.

Be sure and have a towel handy to wipe the sticky stuff off your hands and be careful not to gag on the straw.

Easy. Just messy and a bit risky. But good to the last drop. Or so.

[WinMod70]

Straws are for invalids and Nancy boys. Take the lid off and drink it like a man.