Had to use adhesive to make them stick
351729
Applied to 5/8 inch underlayment.  Did not use primer.  Applied to floor but tiles would move when I rolled the tiles, and seams had to be readjusted.  Many of the seams would lift after minutes or so.  After 2 or 3 days, I pulled the tiles off (popped up) and used a troweled adhesive and reapplied the tiles which made the job very, very difficult and sticky.  The tiles themselves are quite stunning but no matter what I did, I could not make the seams come out tight on every seam.  My biggest complaint?  The only way I can get vinyl tile seam sealer kits is on line.  Home Depot and Lowes do not carry them anymore.  Why?  I have used the product in the past and have always been pleased with the result.  I couldn't get any even from Armstrong's authorized dealers in the area.  Armstrong needs to provide a source on line on their wed site where the public can get the materials they need.
329388
The adhesive is not very sticky and I had to get gorilla glue to hold them in place. I'm using them on a wheel chair ramp so that it won't scuff the stairs or slip.  They work but I had to use my own glue and clamps.
3721478
the adhesive is either old or just too weak, they will not stay on. I used crazy glue works ok now
2992456
The adhesive seems to stick to just about anything.  These are cheap enough that I travel with them, set them up, and then throw them away afterwards.  I also have them setup permanently in a couple bedrooms in my home.
2301168
These labels come in a label pad with three colors.  You peel the label off of the pad and adhere to a surface.  The adhesive reminds me of post-it adhesive, perhaps a little stronger.  There's no residue when you remove the label from the surface.

However, what I found is that the stickiness was inconsistent.  For example, I tried using these on the cabinets in my home, made of laminate.  2/3 of them began having raised edges after a week and then later fell off.  1/3 stayed on.  I also tried using them on manila file folders, and this time, around half of them fell off.  I used them on plastic storage containers, and only 1/10 has stayed on after a month.  I adhered one to a metal door plate, though, and that one has stayed put with no problem.  So, it feels to me like the adhesion is hit and miss.  It's really like a post-it note that is also a label, with all the pros and cons you'd expect from something like that.
3752096
Have a difficult time getting these to stick on my wall, despite following the directions. Some stick but some fall off.
1847825
I ended up attaching strip magnets to these with double side tape, the original adhesive will not hold the weight.
1592401
These look really good Perfect fit, but they won't stick at all. No matter how much you clean the area or whatever they just won't stick.  Need to glue it or get a better double sided tape. So be ready to buy and add some more $ if you want them to stick.
2481619
Had to use silicone to get the strips to stick to the window, otherwise they pop off after a couple of days. Truthfully, it looks very tacky and doesn't completely seal the louvers (ends where brackets are).
1229087
the label s did not peel off so that they could adhere . I needed to use  Elmer's glue to stick them on the spice containers. Old stock! took a lot  of time to try to dislodge them from backing.
2151187
Everything looked pretty good when I opened the package, and I really thought I would like these little cable holders, until I actually tried to use them. I had problems getting them to stick and finally had to put a drop of glue on the sticky (so called) pad to use them. In all fairness to the product though I was sticking them on a vinyl surface and maybe on another surface they would work better; however, I have used some 3M products that stick very well on the same surface. I would recommend the product in every way except for the questionable adhesive qualities.
4663412
Difficult to stick and stay on. Hot glue works great though.
3051412
These are very cute flowers and dress up a blank wall, but we have had a lot of difficulty getting them to stay on.  We tried both the push pin and the velcro-type fixtures, but a sigificant number of them ended up on the floor :(
1191034
The lights are extremely bright and look really good, however, the adhesive on the back of the light strip is abysmal. I put these lights in my pc and they looked great but only stayed stuck for about 15 minutes before everything started falling out. I have to go buy double sided tape to get it to stick.
2034740
Look good but the adhesive to hang up are not the best. Will work for my daughters room as long as no one touches them.
3114793
They look fabulous. But, they didn't stick.  We had to go to lowes and get walpaper paste, even after following the activation instructions.
4941704
I like them but they need a better adhesive. I would suggest getting like 3m glue or super glue theyve held up I dindt want to risk using the adhesive thats on them. They came in about 2 weeks.