I'm fast (and scarily) becoming a Discount Tire groupie. I ended up having to go there after work because my car was vibrating and shaking so violently on the interstate that I was genuninely concerned about safety. It had been vibrating at over 60-65 mph on my way home yesterday and then this morning, the threshold dropped to the 55 to 60 mph. I called Discount Tire to see if they could get me in at lunch time but their wait time was about 90 minutes. I figured I'd put it off until tomorrow or the weekend.
Well, on the way home, the shimmy and vibration grew fierce enough that I became concerned. I was confused too because Discount Tire had told me that they had rebalanced my tires on Saturday but the last time this had happened, it was a balancing issue. I was really hoping it wasn't anything more severe. There was a Discount Tire on my way home, so I got there around 5:15 pm and they were able to get my car in and out in just over an hour. Apparently, the tires were out of balance. Weird. Anyway, once I got back on the highway, I floored it to 70 mph, a speed I rarely hit in my decade-old Corolla, and there was just the very slightest vibration. So problem (mostly) fixed, and again, at no charge.
But yeah, I've been to Discount Tire three times in four weeks. They're probably going to start flagging me as a problem customer. Shessh.