I also only weigh him at nurses appointments or doctors appointments. So birth, 5do, 2wo, 6wo, 2mo, 4mo, 6mo.

Parents I know who weigh their kids a lot are usually at the doctors' a lot, they aren't doing it themselves so often. (The reason for the doctors' visits varies, some because the baby wasn't gaining well, but in other cases it was just getting a lot of colds or whatever.)