Patty, that is probably cochineal on your prickly pear. The source of a durable red dye. You can wash them off with a strong spray of water from the hose nozzle and use insecticidal soap (or any kind of soap like dish soap or Murphy Oil soap) in water in a squirt bottle to kill them. They'll slowly suck out cactus juice when left alone. If you're planning to start weaving and dying your own red yarn, let them be!

Smoke alarms on the ceiling are going to be the first to respond to smoke. Here code says they have to be wired and have battery backup; they're also connected so if one goes off they all do. They're a pain to change out and I bought my sturdy ladder a few years ago because the step stool thing I was using was too wobbly.

You may need to put up spikey things in the veranda under the roof so they don't perch there to begin with. Or put stuff on the ground under those spots that can be cleaned up?

And first things first, get those goatheads. Stepping on one of those with a bare foot or stab yourself in the hand is a life-changing experience. If you pick them up on shoes or clothes they're a time bomb waiting to jab you later. Kill the plants with strong vinegar (20%, or if you only have 10% pickling vinegar, add a couple of tablespoons of orange oil to the gallon of vinegar. Orange oil is also good in the 20%.) Discard the seed heads in the trash, they don't go in the compost, then kill the rest of the grass and learn to identify it early so you can catch them before they go to seed. I've been working to get rid of a similar type of burrgrass in one corner of my yard for most of the years I've lived here. Some years I don't see any, others just a few and I grab them and bag them for the trash.

Pepper isn't eating this morning. She seems otherwise healthy. She has preferences and I try to keep track of those, but she is over time eating more slowly and selectively. Time for a vet trip to see if there is anything else going on.