Bank Inactivity fee - how to avoid?

I make a small deposit every six to eight months. One dollar deposit works for me.

You're best off closing the ones you really don't need. Most promos are for "new customers only" and will disqualify you if you have had an account open in the not-too-distant past, so if there are truly inactive accounts with nothing in them, you might as well close them.

If there are inactive accounts that you want to keep open, the best way is to look at the individual account fees and do a free transaction every six months or so. For the vast majority of accounts, deposits are free, so depositing a small amount would work. For some accounts, they offer, say, one free interac e-transfer per month, so you could transfer money out with e-transfer.