I don't know how it is with you, but I've been using the internet since about 1988. I've been using the web since 1993, and I keep track of my passwords since around 1999. Currently my log contains well over 100 entries. I make a log for each time I create an account somewhere, but also when I buy something. Even when discarding the "buy" logs, most people (even those who keep track but never did the actual counting) don't believe they (or I) have more than 100 passwords. But I do.
This page categorizes the websites I have passwords for.
|Work||Laptop, tools, websites||15|
|Shops||Amazon, photo sites, electronics||13||accounts (not orders)|
|Internet service providers||Tiscali, KPN, their forums, web admin||13||half is obsolete|
|Devices/software at home||PC login, Modem, Nas, Wifi, SQL server||12|
|Hobby||Lego, Nintendo, GPS||9|
|Mail accounts||Hotmail, gmail||9||half is for family|
|Financial||Bank, stock, tax, paypal, insurance||8|
|Phone||KPN, skype, Telfort, Voipbusters||7|
|Community sites||Youtube, linked-in, school, wikipedia||6|
|Reading||Msdn, tweakers, salon||6|
|Physical subscriptions||Newspaper, magazine||2|
|Customer loyalty programs||Airfrance airmiles||2|