"Pack Up Your Troubles" by Wendy Walker

[hoover]

I see a thing, but something tells me I'm only getting half the picture.

[hoover]

I see a thing, but something tells me I'm only getting half the picture.

That's all I needed, was to type a whiny message. SSSolved!

[Wendy Walker]

OK, friends, it's time for the SSS Reveal!
Seven words in the grid are types of bags -- Book, Air, Gift, Doggie, Rag, Overnight, and Paper -- as alluded to in the title, the upbeat WWI ditty "Pack Up Your Troubles in Your Old Kit Bag (and Smile, Smile, Smile)." Their first letters spell out BAG DROP.
@Abide kindly provided us with a real-life illustration of a bag drop: the one at the Coeur d'Alene golf course.
Other themers I tried were bean, duffle, saddle, hand, tote, plastic, brown, trash, laundry, and gym, but they just didn't work out.
Thank you all for solving my puzzle and for your very kind comments. And I had no idea there was such a thing as an onion bag; thanks, @ajk !
The final solvers were Hoover, Katiedid, Tane, and Julie Bookworm, for a total of 49. And our randomly chosen winner is @lbray53! What has he won? A tote bag knitted by yours truly. @lbray53, please let me know your mailing address and I'll send it your way. Congrats!
@BarbaraK's SSS drops tomorrow and it's really fun! Highly recommended.

[MaineMarge]

Thanks Wendy. Bob and I got the bag part but then we dropped the ball.
You are good at this! Marge.

[MikeyG]

Thanks Wendy. Bob and I got the bag part but then we dropped the ball.
You are good at this! Marge.

The same! Nice puzzle and obvious in retrospect. Got 5 of them but ragbag and overnight bag (I never go on vacation, haha) eluded me.

Fantastic job once again!