at one's convenience

Using the phone as a phone is said to be excessively intrusive, an immediate demand upon someone’s time as opposed to a message one can read and respond to at one’s convenience.

They were unable to be sought out, let alone viewed at one’s convenience.

The pictures, which are of extremely minute duration, are thus permanently recorded and can be examined and analysed at one's convenience and leisure.

She felt perfectly safe with Sadie, and would have trusted her, if it were necessary, with the money she had hidden away in her closet at Uncle Starkweather’s; yet the other girl looked upon the laws of the land to which she had come for freedom as merely harsh rules to be broken at one’s convenience.

House Cleaning Hints.—For the last few days before house cleaning, ornaments and pictures can be washed at one's convenience.