So the other day Im cleaning out my truck and I find a check from a customer from last January. I think it got caught in between the seats or something and finally dropped out. This person is no longer a customer of mine and has not been since that last payment for cleanup. I took the check and tried to call him to let him I had found it but his # was disconnected. I then contacted the bank and was told he still had an account there but they could not give me # to call him. I then decided to go by his house but his neighbor told me he was in AZ for the winter and could not be contacted until he came back which would be in mid March. What should I do with the check? Toss it? Deposit it? Wait till he comes back?