That's strange. I use linux all day every day and rarely have to enter my password more than once a week unless I'm doing some serious tinkering.
I would actually recommend that your password be fairly long and strong. You don't have to change it often, so your fingers will soon learn even rather lengthy passwords.
These threads do tend to bring out people who claim to be experts (or at least know what they are talking about) yet know virtually nothing about the subject matter.