We have lived here for 7 years, and the kitchen sink started to leak right at the top of the drain basket. I got it off using a screw driver and a hammer (and a lot of WD40) as I didn't have a wrench nearly large enough. Everything looks fine; maybe it just loosened up after 7 years?
I have 4 options.
1) I can cut a new cardboard ring and reinstall the old basket. Free
2) I can buy a new basket similar to the old one. $10
3) I can buy one that has a small nut that tightens near the bottom, rather than at the top $15
4) I can buy one that tightens with 3 thumb screws. $12

On 1 and 2 I can tighten with a screwdriver and hammer (as I removed the old one) or buy a wrench for $6. 3 and 4 look to be somewhat better quality than 1 and 2. I don't want to spend more than I have to, but my primary interest is doing something that will work.

Any advice would be appreciated.