Left holding the baby - HELP!!!!

DD1 and DP are both off on holiday without me for a week from tonight.
Before you ask - no, they’re not going away together. They’d end up murdering each other or causing an international incident or something.
No, DD1 is off on holiday to Somerset with her best mate and family. And DP is going a bit “Ray Mears” - walking the Cornish Coastal Path. Well, you know, as long as it doesn’t rain or get too muddy or anything.
Ordinarily, I would be ecstatic about the thought of spending seven days in the house without those two cramping my style.
But, these days I have a slight irritation to contend with.
DD2 - aged 16 months.
Lordy, it’s hard keeping my psycho toddler entertained.
She can’t keep her mind on anything for more than two seconds. And if she doesn’t get her way immediately then boy is there hell to play.
Usually, I can shirk off and let her big sister or dad take over for a bit while I do something really important, like the dishes or the ironing or watching Coronation Street.
But this will be the longest stretch I’ve ever had to endure with her.... ALONE.
I know other mums seem to manage fine with kids, filling their days with lovely craft activities and book-reading and other fluffy gorgeous stuff.
I usually end up bunging her in the car seat and dragging her round Victoria Centre. Well, she does seem to like it in Monsoon for some reason. Must be all that weird colour.
I do wish I was one of those fabulous mums who is able to spend time with small children and be really brilliant at it.
But much as I love my little monkey, I won’t half be looking forward to those 7pm bedtimes next week so I can crack open the Pinot Grigio.
Anyone got any tips?