#2
Use a screwdriver that fits, and replace the screw as soon as you get it out.
#3
Go get one of these.

None are more hopelessly enslaved than those who falsely believe they are free.
#4
use a pair of pliers. but be careful.
Ibanez RG321MH (Air Classic/Tone Zone)
Fernandes Telecaster (Twang King/stock bridge pickup)
Blackstar HT-20 (Scumback 55 speaker/ Tung Sol tubes)
TC Electronic Nova Repeater
Lava Cables Clear Connect, Soar and Mini ELC