Cleaning up dust in a wallet

[yvv]

Hi,

I had few bitcoins in my wallet. I decided to get rid of this wallet and to send btc to new one. When I was sending btc, I put exact number of btc in the wallet, but the client complained that I need to pay transaction fee and don't have enough funds to complete it.  I subtracted the amount of fee from the amount of btc in the wallet, and transaction passed through, but somehow small fraction of btc remained. When I tried to move this tiny amount, I got insufficient funds to pay the fee complain again. I hate to destroy the wallet with a fraction of btc inside, may be this will have a value of ice cream  hundred years from now. Can I transfer this small amount to the new wallet or should I just keep the old wallet forever? Why the client does not subtract fee from transferred amount, instead of putting it on top?

[r.willis]

I think by "client" you mean bincoin-qt, than after warning it really subtracts fee from transaction amount, so you just press "send" again and get it through. If you subtracted fee manually, than it makes sense that you ended with dust.
I think transaction fee is lower for "old" coins, so if you leave it to sit for some time it can become "feeless".

[yvv]

Yes, I am talking about bitcoin-qt. It did not say that it is going to subtract the fee from transaction amount, instead, it said that I have insufficient funds because the fee is added on top of transaction amount. But, after I removed the fee from the total amount of btc in my wallet, I was left with leftover, which is smaller than the amount of fee indicated by the client first time.

Ok, I'll leave it as it is. May be I find some use for this dust later.

[RodeoX]

Introduce a friend to bitcoin and give them the wallet? At least the client won't be quite as boring with a few Satoshis.