I have accounts on dozens of web sites. New ones pop up every few weeks; old ones are seldom purged.

I use these accounts every day:

I use these fairly often, but not daily:

These see little activity, but are not abandoned:

I never use these:

I really ought to delete accounts in the latter group, but 1) it’s not always possible; and 2) I’m lazy.

Update: I deleted the ones I could delete. The others will linger, abandoned & ignored.