Cass said:

I've been using a single button for Save for web.

One more thing: I would HIGHLY recommend that you not use the 'Save
for Web' feature, as it can reduce the color pallette dramatically.

Instead, after sizing the photo for the web (using ImageImage Size,
72 dpi by whatever dimension), just do a regular 'Save As' and then
select jpg (Isuggest level 6)

When you have sRGB as your normal Photoshop working space you don't
have to worry about anything else.

Bob