Guilty. I have a tendency to do this with checks. We have direct deposit and use the ATM for cash. I don't like doing deposits on the ATM so
I usually wait until I get a few checks to deposit together. This could take a few months. I have even let rebate checks expire.

a couple of times. My dad doesn't reconcile his check book, so I do try and cash his checks as quick as possible or he thinks he has more money in the account then he really does.

Donna
This is me exaclty. I have two checks sitting on the desk right now, waiting for whenever I go near the bank again. (if I'm near-by, I'll go ahead and take them, but I'm not making a special trip). I hate filling out a deposit slip and going to the bank, sitting in line, etc. all just for one check. I didn't even make the effort for our income tax refund and it was nearly four figures!
I have lost checks before, though. We do better now about putting them in a special place to accumulate, but I used to just put them anywhere and then never see them again. I was cleaning up a few weeks ago and found a stack of cards from my college graduation. Yep, there was a check in one of them. Dang. (the year was 1987...so I'm way too embarrassed to do anything at all with it!)
And wow, I feel really bad now. I don't ever do anything with my bank balance besides check online to see what's in there, so I didn't think about it messing with someone. (I know! Bad! Bad! It drives DH crazy. He says there could be a bank error and we'd never know! I tell him, fine, you take over the finances and balance the checkbook then. He shuts up about it real quick.

)
For the record, I did write a thank you note for that check I never cashed, btw and I do now warn people that I don't cash checks in a timely manner.

I was with a group at dinner last month and we wanted to split the check, but the restaurant wouldn't split it, so I put the whole thing on my credit card and everyone else paid me for their part. One person wrote me a check. I *really* didn't want a check, but it was all she had, so I took it. Hmm...I think I did cash it in the trip with the tax refund. LOL I was about to wonder if it was still here.