What's your favorite way to accept client payments? 👀

I use QuickBooks for my invoicing and allow clients to use any option they give me. Credit Cards, PayPal, Venmo, ACH, etc. I have a few clients who pay via check, but the delays in waiting for the mail to arrive and getting them deposited to the bank doesn't work for how I do business. I consider the cost of processing credit cards when I price my work. I am considering a discount if clients use ACH bank transfer.