From a plain halacha perspective, the answer is clear. Tekias shofar is all day, as is clearly mentioned in שלחן ערוך. However, the gemara says that originally תקיעת שופר was during שחרית, so to do it בברכותיה it would have been before חצות. It was changed when the oppressors didn't forbade tekias s...

Do you find these inadequate?

Many poskim allow this. If you throw away the cap, it is allowed by even those who are otherwise machmir. I keep a collection of bottle caps in a drawer, which I use on Shabbos, and I throw the ones I remove on Shabbos into the trash.

Highly likely!

All else being equal, day camp is less important. However, people are desparate for a return to normalcy, and the time for day camp is fast approaching.

Shevuos was very nice baruch hashem. It was actually back to normal.

When I was using them, they retainer the shape after the first use.

PS Initially I didn't pinch them at all; however, someone showed me that this was the reason my glasses were getting fogged up. Once Iearned how to make right kind of pinch, the problem went away.

When using a new disposable mask(as is common nowadays due to the COVID-19 situation), are you allowed to pinch the wire to make it fit your nose? It seems to me that it should be considered מכה הפטיש( finishing  a device or vessel) and therefore forbidden. Did anyone hear any halachic opinion on th...