come to think (of|about) it
1
used to introduce a thought or realization that occurred to one during a conversation
- Come to think of it, I haven't seen Sarah at the office for a few days.
- Come to think about it, I believe we have a spare laptop in the office that you can use for the presentation.
- We were discussing our travel plans, and come to think of it, I might need to renew my passport before the trip.
- Come to think about it, I remember seeing the missing document on my desk earlier today.
- We were discussing the budget, and come to think of it, we might need to allocate more funds for marketing.