You have my sympathies OP, it's so hard isn't it! Last summer hols I also had a houseful most days. Our neighbours have kids similar ages to ours, (11 and 6), and the only way their parents could sort out childcare was to have the mum working half the week from home while her dh went to the office, and vice versa for the other half. They thought they'd sorted it perfectly but the reality was although there was an adult in the house at all times, they couldn't do a lot with the kids of course, as they were technically working!
This meant they'd let the kids out on their bikes/scooters around 9 am and they'd come straight to us, knocking for our two. They mainly wanted to be in our house but even on the days I said no it was me they asked for drinks/snacks etc. I did go and knock on their parents' door a few times when we all wanted time to ourselves but their reaction was "Oh just send them back if they're bothering you!" Well they wouldn't go back
, kept hovering outside our front garden kicking balls about, trying to look in the windows to see what our two were doing etc.
Another boy was coming in a fair bit to play with ds which was fine, but of course he didn't get on with the other two visiting kids so I was having phone calls from his mum asking what had gone on, and could I do something to stop the 'bullying'
Did tell her it was all getting too much and could she stop him knocking so often but she just shrugged it off, saying kids want to be with their friends in the hols and just send him back if he's being a pain. Well he was another one who just WOULDN'T go!
If we were going out we'd have to leave early, as it was so difficult to get out the door once all the knocking started, kids wanting to come with us etc. It was also feeling as though we couldn't just be "in", in our own house as they just WOULDN'T stop pestering
I've got a lot better at saying no over the last year, and so far this holiday although they've come over, they seem to have other friends there too so childcare is obviously more sorted this time round
I admit was completely exhausted by the end of last summer, I'm probably not the best at speaking up if a situation's getting too much, but it really got on my nerves how some parents are just happy to let you be "childminder", with no thanks, no knocks on the door to collect their kids or ask if you're ok with it. Just texted occasionally for me to send their kids back for meals and within 10 mins they were knocking again
If I were you OP I'd start saying no but without justifying it with reasons, just No, not today sorry. You'll probably have to do this many times before they get the message but it will pay off eventually