Let me tell you, buying a bidet was the best 40 bucks I ever spent. Taps into existing line and doesn't any tools (Came with what it needed).
I used to use wet towlettes to follow-up dry wipes, but always felt guilty after finding out that they aren't recommended for sewer systems (even the "sewer safe" ones).
Here's a strapless mask and there are also neck gaiters, although these might not be allowed at some locations.