Yes. I throw a lot of parties and can pull from my stash when needed. I have thrown a ton of showers, birthday parties and anniversaries. I bought some really nice tables and chairs and have seating for 30 off facebook marketplace.
I buy those polyester tablecloths like restaurants use. I have a black and a pink ones and one of those colors works for pretty much all my kid's parties. I wash them and reuse. Like this:
https://www.amazon.com/sancua-Rectangle-Tablecloth-Resistant-Decorative/dp/B07XPTJKQC/ref=sr_1_5?dchild=1&keywords=polyester+tablecloth&qid=1610471563&sr=8-5
I have quite a few of those paper lanterns in different colors. I hang them from my ceiling with tape. After the party, you just fold them down and reuse them again. I have white, black, pink and red, which seem to work for a bunch of different parties.
For favors I always do something parents would like or can be easily used/regifted- like nice books, water wow, nice coloring book, bubbles.
I have a set of 50 white corelle plates (inherited). They are so nice to eat off of at a party. No need for paper plates. I do serve paper napkins and paper cups for kids though. For adults I have mason jar drinks prepared (like mojitos or 1/2 lemonade 1/2 iced tea or something else on theme).