Getting and spending

• Our Dell laptop's battery will no longer hold a charge for more than about 10 minutes.  Dell wants $135 for a new one, which is too rich for my blood.  I decided to try one I found on Buy.com that only cost $33.  It arrived yesterday.  As I was installing it, I had some concern that it wouldn't fit or that the computer would refuse to charge it because it's not a Dell product or that it wouldn't hold a charge.  So far, however, it's working perfectly!
• I've got a cold, so I bought some Mucinex on Sunday.  I had it in my mind that the last couple times I've had colds, Mucinex "D" had helped me a lot, but all I saw on the shelf at the drug store was Mucinex "DM," so I thought I must be remembering incorrectly.  "DM" hasn't been helping me much, so last night my wonderful nurse went shopping for me.  She didn't find "D" on the shelf either, but she asked at the pharmacy counter and found it there; I guess it's a controlled substance of some kind, because she had to sign for it.