I say "when I get my garden finished" however I have come to the realization that it will never be "finished"
There will always be weeding, deadheading and the desire to expand with new plants. This my friend, is the joy of gardening.
Each day when I arrive home from work, I go to the garden to see what has taken place while I was away. Sometimes I find a new seedling just breaking ground or maybe a slug having dinner. Either way, I find the anticipation of what the next day may bring is what keeps me gardening, and this is how I know It will never be "finished".