disclaimer: i'm a little embarassed to even have to ask such basic questions. however, it seems easier to find information to solve technical questions than to find information spelling out what most people just know. background for static electricity questions: i've read that-- grounding is important when working on hardware. this can be accomplished with an antistatic wrist band and a cardboard box. questions: 1. if we open a case on a wood kitchen table and work while standing on a tile floor, is this sufficient? 2. is there anything i should know about the tools we use? i use chopsticks to hold things out of my way, for reaching things or to help me get the cases apart when they don't just have screws. is this okay? 3. i use a regular plastic screwdriver when i need one. do i need to do anything to ground it? about cleaning: canned air seems to be the choice. is it the only choice? can i use a clean paintbrush, a microfiber cloth, or a magic eraser on parts. is it a HUGE no-no to use the dyson? some of the computers my son and i have been working on are very old, most have been stored in garages. while they are working fine without much cleaning, it goes against my instinct to put anything back together without wiping it down first. for the record, we aren't running a business. it's just something fun to do and i don't want to put a lot of funds into it.