There have been some very slow emails from eBay recently but usually the PayPal emails are coming in on time.
As long as one of them shows up I know I've made a sale.
I also sell on several id's, I log into each of them at least once a day.
Of course I monitor all my accounts with SixBit which draws it's sale and payment info directly from eBay/PayPal API's so the even the emails are not really neccessary for me (but I check them anyway).
Paranoia strikes deep
Into your life it will creep