This thread is feature complete, EXCEPT for the MTP and Bluetooth entries at the bottom of this post. 
Many users will not need this, but some will, especially those new to Puppyland.
Puppy Linux (aka 'PUPs/DOGs') found on this forum has a plethora of services that allow simple movement of information from/to your cell phones of all types.
This thread intends to share 'What PUP-DOGs offer' and some simple guidance to get members started.
Let's start with the basics:
3 known ways to connect to PUP/DOG
The components on PUP/DOGs
The components on cell phones
Steps to integrate your phone for file movement
I will start with the easiest and most foolproof, then move to the next simplest, and finally the last of the "connect to PUP/DOG" abilities.
The 3 ways to move information is either wirelessly, via a USB wire, or via Bluetooth: Almost EVERYONE understand these. There is a PUP/DOG component to do this as well as there is a phone component. Read-on.
The EASIEST
PUP/DOG component
This, I find the easiest, as, about, EVERY PUP/DOG over the last decades has this out-of-the-box (OOTB)...namely SAMBA. You dont need to install anything, you dont need to spend time in research, you do nothing more than merely turning it on
Cell-phone component
Your phone has wireless built-in...nothing to do here; except to insure it is on the same LAN as your PUP/DOG
Get a file-manager from your phone's play store that has a network component. I've used VLC and other file-managers from the phone's play store.
Tell your file-manager's network component where your PUP is on your LAN
Done! All files movement is controlled by the phone user. NOT the PC. Now just move info, at will, or as needed. More secure as the phone is the ONLY element that can initiate information movement.
Wired
PUP/DOG component
This, TOO, is the easiest. It is called, "MTP" on your PUP/DOG. You don't need to install anything, you don't need to spend time in research, you do nothing as when the phone is plugged in this service should automatically spring to action on PC screen.
Cell-phone component
Your phone has this component built-in.
Done! Now just move info, at will, or as needed. This movement is done directly from the PC desktop...not the phone.
Blue-tooth
PUP/DOG component
NOT every PUP/DOG has this component package built-in nor has the hardware feature available to do this. AND there are several different Blue-tooth packages and their dependencies needed if one chooses to install this service on a PC that has the blue-tooth hardware.
Cell-phone component
Your phone has this component built-in.
Done! Now just move info, at will, or as needed.
Beware, there are many, many more ways to use other services and methods to move information to/from. These are merely the 3 easiest that are the most easily understood by both PC users and cell-phone users.
Lastly, this thread is to be viewed as a "DIRECTOR" to the known steps for connecting your cell-phone to your PUP-DOG.
The FOLLOWING THREADS are coming soon!!!
Steps
Steps for SAMBA and your phone(s) are===> Here - 'SAMBA Steps for Cell-phone Users'
Following threads are NOT present, at the moment:
Steps for MTP and your phone are should be placed ===> Here - 'WIRED USB Steps for Cell-phone Users'
Steps for PCs with Blue-tooth should be placed ===> Here - 'BLUE-TOOTH Steps for Cell-phone Users'
- and want an easy-to-use way of sharing files myself.