Use the hashtag #link in your Tweets with a URL — this Applet will take them and add them to a Google spreadsheet so you can quickly find every link you've ever Tweeted. Ah, memories.
If
New tweet by you with hashtag
This Trigger fires every time you post a new tweet with a specific hashtag.
Then
Add row to spreadsheet
This action will add a single row to the bottom of the first worksheet of a spreadsheet you specify. Note: a new spreadsheet is created after 2000 rows.
Discover more time saving integrations for Twitter and Google Sheets