You're right, however, for some cases (namely electrum) I still advise remembering it (electrum.org), just because one may need it on a fresh PC or a live OS.
But yes, for normal use bookmarking the proper site is also a great approach.
Anything, just don't search for it, because fake sites are often returned in the top of search results, and don't click onto links in e-mails, websites and so on.
Sure. It is the same with forum address. Anyone of us don't remember the forum address: bitcointalk.org. It is easy to remember most important sites. For the rest, use bookmarks, and spreadsheets.
If someone use the same computer, that already install Electrum wallet (for example), just click on link from the wallet to upgrade to newest version. There is no need to search for site of Electrum, then might get trapped.
One more thing, people should dedicate one computer for extremely important things: Wallets.
Their rest devices can be used for other stuffs: log in emails, log in exchange accounts, log in the forum accounts, and for entertainments.