I've read and re-read all of the postings and while all are quite interesting in the various methods, (including the "super glue" ) , I just haven't seen any comment about Particular "mechanics" of everyday life.
What I'm getting at is, occasionally one has to pick up something that has dropped. Now I know enough to NOT bend over but rather to bend at the (held together) knees. (Think wearing a tight fitting skirt and wanting to maintain modesty). I'm not a "taper", just a tight clothing wearer. Don't own any swimsuits or bikini bottoms, and my jeans look rather presentable as it is. Any skirts I have aren't so "skin tight" as to give any sort of "revelation".
Like I've mentioned the "thigh shaper" from Barely There works well for me. "tucking" isn't a problem for me, (they go where they belong) and as for the "stick" I reach behind myself and into the shaper pulling the end between my "nether cheeks". While this may not be fully satisfactory for some, it works well enough for me. I've even tried the "control panties with front panel stand up" method and have had some success. Much rather the "stuff and tuck" idea.
Anyhow, more to the point. I've found that when bending to pick up something or even when sitting for any length of time, "it" slides forward. OMG, I so hate talking about this without sounding too crude.

Here I am with a nice looking "tuck" thing going on and ooopppsss I drop something or have to bend down to adjust the strap on my heels, and "he" slides forward a bit because of the natural physics of that act cause your "cheeks" to spread a bit. I've tried practicing a "squeeze" act when bending or sitting to hold "it" ( kinda like when you "gotta go" ), this seems to help, but wow, all this work just to have "the look".

Hopefully I've explained myself well enough. I don't think I'm asking for any suggestions here, just sorta making an observation, but if anybody has a thought as to how to stop "the slide" without resorting to tape or glue (eeewww) I'd be happy to learn.

Side note: Three years ago I used to simply "stuff 'em" and do a "push in" thing, folding the extra skin over "it" . Worked ok but left a large lump. When buying my first pair of "tight fittin jeans" the S.A. says to me, "You really should learn how to make it go away, the jeans look bad on you with that bump" Actually thanked her for the honesty, That evening I started learning "how", been doing it ever since.