Round abouts

 What's with all the "round abouts"...We sure never head those when I had driver's ed. I  know you have to yield to the left..but the ones tha thave double lane ones just throw me.I'm never sure which part of the circle to enter--depending on where I want to exit the "circle from hell".
  And now some major streets have them so close together that  I fear I will either 1) end up going around in circles or 2) end up leaving the circle at an UNintended spot and go god knows where.  I have changed my routes through the city to avoid these areas..but I still find my self swearing under my breath when the car behind me is honking at me (when I am about to enter a single lane round about) as I assess the speed of the car directly across from me. . .which just entered the circle but is going so fast that they, essentially, ARE on my left.  Could someone make some "public service videos" for tv showing  some scenarios at round abouts?

I'm back. . .

  Well, I turned 63 this month..and , as birthdays will sometimes do, I find myself thinking of things I let fall on the way side--like bog entries.  So. I'm back.
Today's topic is tv commercials and my "Are you kidding?!?" response to same.
  Like, there is an ad I see a lot for some medication and it ends by saying "if you are allergic to any of the ingredients. do not take"..to which I always think "if you need to be told that, you need some serious meds"
   And then there is the one for aspirin which ends with the words"be sure to tell your doctor before beginning an aspirin regimen". . .and all I can think is how my doctor would react if I would call her and say "gee, is it ok if I take an aspirin a day?" (I can just see her thinking how insecure I am.)   
 And don't even get me started about the erectile dysfunction ads that show a couple ~~each in a bath rub in what appears to be an open field. . .