Don't see anyone talking about processing field recordings here, and though I do record my own I think how you use them is much more important so I think I'll pop in with a few tips on how I like to make my recorded textures more texturey. 

First of all one of my favorite ways to get a fun tail on some foley that keeps the texture is to use a delay that re-pitches as you automate the delay time. If you have a few seconds of glass or leaves this can make the sample way crazier quickly.

I also like to run longer bits of foley through glitch plugins like buffeater and glitch at the tempo of the track I'm working in, then resample it and use little hits that are glitchy but kind of still synced feeling somehow.

Another thing I like to do (which is arguably made cooler if you have ableton 9.5's simpler) is to take a piece of foley and put it in a sampler and rather than actually write a part to the song to literally just record myself dragging a midi note up and down triggering a million notes while moving the start time. The volume and filter envelopes you put in the patch of whatever sampler you're using can have a huge effect on the character of the sound so I would say to experiment with that too, especially if you have self oscillating filters like the new ones in ableton 9.5.  Also try timestretching if you have the new simpler, but unless you have a powerhouse pc this may be tough on complex mode. The sounds you get with this trick can also basically be treated like foley and you can get even crazier results trying any of these tricks on them again.

Hope I got some interesting stuff, I didn't cover stuff like layering with drums and granular resampling/timestretching because I feel like there are enough resources on them already. Also if you want me to post examples of any of these tricks I would be happy to.