Am I just imagining it or did the achievements used to have little checks on the ones with furniture to show you what you do and don't have yet to complete one? If it didn't, would it be possible to get that like on the items page?

It did not. We'll add this to our to-do lists. Not sure how soon we can get to it but we'll do it when we can. Thanks!

The checks are on the furniture and other items so you can know you have received them..