Good Thread - I'm watching it for tips myself!
What we have learned over the years...
#1.. make sure what type of paint is already on the walls. When we first bought our house, we found out the HARD way that the original owners had used OIL BASED paint throughout... ugh...
#2.. if your using brushes and rollers (nothing fancy) while you want quality tools, but, you also want it cheap enough you can consider it disposable when your done. I HATE washing out brushes and rollers and trays
#3.. either buy the containers (home depot & lows sell them) that you can store your leftover paint in (for touchups) or just start saving any glass jars that you have (like for spaghetti sauce).. it's so much easier to store a few containers or jars w/ the room, date painted, and brand/type/color stored on it, then 1/2 and 1/4 empty paint pails.
#4.. we set up a paint station. In a corner of the garage, we put out "saw horses" and an old plywood or something across them to set up a paint station. All razors, tape, brushes, paint rags, drop cloths,buckets etc etc were kept there We tend to take a weekend/week and just repaint everything and since different rooms are usually different colors, it's just easier to have a "paint station" setup. when we are done with a paint job, I have a Rubbermaid type tote that anything we are keeping, we clean it, and store it here so we know where it's at. (that's also where we keep the small jars of touchup paint.)
#5 I know this seems silly, but follow the suggested painting pattern listed on the paint bucket. It really does work to paint a "Z" or "W" on the wall and then fill it in.
#6 Take off all outlet/switch covers.. it's easier to pull them off and paint & then put them back on then to tape and paint around them. At the same time you do this, check & see if the "outlet/switch box" is insulated. if not, home depot, Lowes,Wal-Mart etc sell these inserts you stick onto of the box/outlet & then put the cover back on and that really does help with drafts. and lastly, if you have the generic contractor's grade covers, maybe build a little into your budget to upgrade. It's amazing what nicer covers add to the room then just your standard plastic covers.
#7 paint clothes. I don't' care how careful I am, I always get paint on me.. either in my hair, on my skin, on my clothes, etc. I have found it's best (for me) to put my hair up & under a hat or something, wear disposable gloves, and I wear one of DH's old work shirts with my "painting" pants. When I'm done painting, I through away the gloves and strip out of the painting clothes and viola! I'm "done' I don't' have to scrub anything off my skin or bemoan some ruined clothes. The next day, or whatever, I just pull on what I had before and I'm ready to go.
#8 Don't' wait until the day your going to paint to do your prep work. Usually the day or so before we plan to paint, we take down all pictures etc, fill any holes, recaulk the trim edges, clean and wipe down all surfaces being painted, and if possible move the furniture/cover the furniture. The more prepared the workspace is, the fast and flawlessly the paint job can go!
and my #1 rule is if you are not actively helping with the painting then you can't be here while I"m painting (this goes along w/ being careful who you have help you!). So I make arrangements for the kids to be somewhere else. and I have only have whoever is helping (if anyone) at the house.