Your answer has been answered above, I will just add this extra info though.
Basically you need to use your cards more frequently (that's what they ther for

), if you get 8 different cards you are full unless you get repeats. Plus if you are working just on sell suits, you will get doubles of cards too, eventually you could have 3 or 4 of same card you may not use much to get rid of.
Check out this
<Link to SOS Lists> to get an idea what SOS's you can collect and you'll have good idea what you want to collect.
For the rest you should free a slot by using one at end of one of the VP battles, but if like me you tend to forget such things, just use them up before entering.
If you are doing factories a lot, some of the
SOS's can be used in there, the lowest
Trap one (with lure) and lower
Drop one are more useful on the lower cogs in there and save gags.
Just rememeber if you use a
Restock that they will fill all extra gag space you have available and you will not be able to
Restock with anymore (barrels in factory for instance) until you have made more space!!
Toons Hit and
Cogs Miss have certain value:-
Toons Hit can make sure
Lure Hits if you have had a miss or two, or make sure Toonup gives as much as it can.
Cogs Miss will allow one round of breathing space to try and secure cogs (luring) and
Toonup if needed, but also can be used to
Sound cogs but not defeat them, then after a round of missed cog attacks hopefuly another
Sound volley with defeat them all (I have done this many times where I know I dont have enough
Sound left to help defeat cogs in play, but know I have
Cogs Miss, after using I join in another
Sound volley and say goodbye to cogs without talking a hit)
Remember Toons Hit and Cogs Miss only last ONE ROUND.
'Keep it Kool

'