Eco-friendly triathlon training

I have a high personal interest in this area, but not sure what else I can be doing. I use Infinite Nutrition and buy it in the big eco-bag (as opposed to the individual serving packaging option) and purchase maybe 10 gels a year - for use on runs over 10 miles only. If I'm going through longer distance training seasons I'll use individually packaged items like Stinger Waffles and Sports Beans - but I don't buy/use enough to investigate a bulk purchase to reduce packaging. I use tap water and obviously re-usable bike bottles and a handheld bottle for running.

I've been training and racing for a long time (13 or 14 years?) so don't buy a lot of "new" training gear - just replace things when they literally fall apart. Like a new training swimsuit every 3 seasons - that kind of thing. I drop off my old running shoes at my company's annual shoe recycling event each summer.

Interested to see if there are more things I could be doing that I haven't thought of.