I remember as a child looking up phone numbers in the phone book with interest to call friends or relatives. Now that almost everyone has mobile phones, the use of the phone directory seems outdated. However, I understand that it can still be a useful source of information for some people.

As for wallets with card slots, I have never understood why they are needed. I've never had the need for such wallets, and I'm not sure they really help organize finances. Maybe someday I'll try using such a wallet, but I don't see the point yet.

As for buying music equipment, I really believe that sometimes it is worth investing in quality equipment. This can significantly improve the sound quality and overall experience of listening to music. However, I also understand that this is not always necessary, and there are many ways to enjoy music without spending a lot of money.