About 2 years ago I opened a second checking account at the bank I currently use and about 3 days later my credit score dropped nearly 30 points. I had no other factors that would have accounted for the drop. No late payments. No accounts or loans closed. My credit score account showed no recent hard inquiries or anything, no derogatory marks.
I resell a lot online and want to open a savings to start depositing my earnings into to build up a nice little chunk of money. However, I am now scared to open any new accounts because of what happened last time I did.