ok the snarky remarks like "do yourself a favor and turn off the sketch when your done doesn't help" this guy asked a legitimate question .... it's irritating that when one is in a sketch one would need to leave that environment to filter out 2d sketches which, btw also turns off the visibility of the sketch one wants to see. WTF are you all unable to see this guys issue and the reason it's annoying or do you just like to say **** like that to piss people off? it's like going to the doctor and telling him something hurts when you do a particular thing and the doctor responding with "don't do that then" would that be the type of advice you want from an expert?
@Curtis_Waguespack wrote:
@Anonymous wrote:
All of the replies so far are either to individually deselect "visibility" from each sketch or to press F10.
If I have lots of sketches It is very tedious to deselect the visibility of each one individually. Also, F10 only works when you're not in a sketch environment.
Is there some tool to only show the sketch you're working on?
Hi amarciniakTF6LQ,
It's a case of "pay me now, or may me later".
If you didn't right click and turn off the sketches when you were done with them, you will have this issue.
Using the View filter filters them, but as you've seen other tools toggle the filter off, and they all come back on.
To fix the issue you find yourself in at that moment, you can create an illogic rule and paste in this code and run it, and it will go through and turn off each sketch (as if you right clicked them).
In the future, do yourself a favor and right click the sketches and turn them off when you're done. 
I hope this helps.
Best of luck to you in all of your Inventor pursuits,
Curtis
http://inventortrenches.blogspot.com
'set document
oDoc = ThisDoc.Document
'set sketch visibility
For Each oSketch In oDoc.ComponentDefinition.Sketches
oSketch.Visible = False
Next
@Curtis_Waguespack wrote:
@Anonymous wrote:
All of the replies so far are either to individually deselect "visibility" from each sketch or to press F10.
If I have lots of sketches It is very tedious to deselect the visibility of each one individually. Also, F10 only works when you're not in a sketch environment.
Is there some tool to only show the sketch you're working on?
Hi amarciniakTF6LQ,
It's a case of "pay me now, or may me later".
If you didn't right click and turn off the sketches when you were done with them, you will have this issue.
Using the View filter filters them, but as you've seen other tools toggle the filter off, and they all come back on.
To fix the issue you find yourself in at that moment, you can create an illogic rule and paste in this code and run it, and it will go through and turn off each sketch (as if you right clicked them).
In the future, do yourself a favor and right click the sketches and turn them off when you're done. 
I hope this helps.
Best of luck to you in all of your Inventor pursuits,
Curtis
http://inventortrenches.blogspot.com
'set document
oDoc = ThisDoc.Document
'set sketch visibility
For Each oSketch In oDoc.ComponentDefinition.Sketches
oSketch.Visible = False
Next