With a phone call I might forget or if I make a note I might misplace it.

If you feel really uncomfortable with numbers and terrified that you might misplace dollars, then I would consider software, but being that it is a smaller triplex, and that you have opened up a credit card and checking account already, and Excel sheet should be just fine until you start to scale to 6+ units.

The tenant had misplaced his info for depositing the rent and wanted us to give it to him again.

The sentences, misplaced and misspelled words are deliberate.

What ticks me off isn't the money but my misplaced trust.  

I think I have since misplaced his card, is there anything I can do if our property tax for next year comes in higher because of his snooping?

We have asked for the security deposit to be transferred, however the original lease was misplaced when the current owners husband (who managed their properties) passed away several years ago.  

If it comes back positive, then your fears are probably misplaced.

You'll also find after dealing in these types of contracts, where they may say some attorney is holding the deeds in "escrow", that those deeds have been misplaced, lost or destroyed and can't be produced, I had to run through the Bar Association to find out what attorney "inherited" the obligations of the escrow attorney, they do kick the bucket too.

Account Closed I hope my sarcasm wasn't misplaced.