Issues with figures

We all know that transformers figures are not perfect. A few i've noticed off the top of my head and a way ive tried to fix it:

• Rotf arcee- the spring loaded blade on her right arm can and most likely will mess up. the spring will coil up and twist after a while of using it, leaving the blade unable to push all the way in. This might not work all of the time, but i just unscrewed the piece and moved the spring around a bit. when locking the blade in, hold up the trigger while pushing the blade.
• Rotf sideswipe- his mechalive feature on legs can get pushed back so they do not work properly. easy to fix, just unscrew the upper leg and reposition the gear so that it is aligned

• Movie Brawl(deluxe)- i think we all pretty much know about his gun issue and arm detachment. this is just a way to keep it in place while in robot mode, but push the gun all the way back on his arm and get a clear band that comes with figures to keep them together around the black plate and arm part.

Hope this is a help to someone. Sorry there were no pictures, may or may not put some up. ill put more up when i find them. feel free to list some things and their solutions you've found in the comments